Add packed-ref handling

.gitattributes

@@ -1,2 +0,0 @@
-.git* export-ignore
-*.markdown export-ignore

CONTRIBUTING.markdown

@@ -8,14 +8,8 @@ platform issues, and interactions with other plugins.  I end up bisecting a
 lot more than other projects, and thus I'm especially meticulous here about
 maintaining a clean, readable, history.  Squash and force push any requested
 changes to a pull request.  And if your [commit message
-sucks](https://commit.style), I'm not going to accept it.  Period.
+sucks](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
-
+I'm not going to accept it.  Period.
-If your contribution involves adding a configuration option, you are going to
-need a very compelling justification for it.  Options add a maintenance
-burden, support burden, and documentation bloat, and oftentimes can be
-achieved much more simply with a custom map or autocommand.  If your option
-controls an underlying Git command, ask yourself why Git itself does not offer
-such configuration.
 
 Beyond that, don't be shy about asking before patching.  What takes you hours
 might take me minutes simply because I have both domain knowledge and a

README.markdown

@@ -20,7 +20,7 @@ changed, or `o` to open it in a split.  When you're done, use `:Gedit`
 in the historic buffer to go back to the work tree version.
 
 `:Gmove` does a `git mv` on a file and simultaneously renames the
-buffer.  `:Gdelete` does a `git rm` on a file and simultaneously deletes
+buffer.  `:Gremove` does a `git rm` on a file and simultaneously deletes
 the buffer.
 
 Use `:Ggrep` to search the work tree (or any arbitrary commit) with
@@ -35,15 +35,9 @@ and you never get any warnings about the file changing outside Vim.
 making it like `git add` when called from a work tree file and like
 `git checkout` when called from the index or a blob in history.
 
-Use `:Gbrowse` to open the current file on the web front-end of your favorite
+Use `:Gbrowse` to open the current file on GitHub, with optional line
-hosting provider, with optional line range (try it in visual mode!).  Built-in
+range (try it in visual mode!).  If your current repository isn't on
-support is provided for `git instaweb`, and plugins are available for popular
+GitHub, `git instaweb` will be spun up instead.
-providers such as [GitHub][rhubarb.vim], [GitLab][fugitive-gitlab.vim], and
-[Bitbucket][fubitive.vim].
-
-[rhubarb.vim]: https://github.com/tpope/vim-rhubarb
-[fugitive-gitlab.vim]: https://github.com/shumphrey/fugitive-gitlab.vim
-[fubitive.vim]: https://github.com/tommcdo/vim-fubitive
 
 Add `%{fugitive#statusline()}` to `'statusline'` to get an indicator
 with the current branch in (surprise!) your statusline.
@@ -66,7 +60,7 @@ If you don't have a preferred installation method, one option is to install
 and paste:
 
     cd ~/.vim/bundle
-    git clone https://github.com/tpope/vim-fugitive.git
+    git clone git://github.com/tpope/vim-fugitive.git
     vim -u NONE -c "helptags vim-fugitive/doc" -c q
 
 If your Vim version is below 7.2, I recommend also installing
@@ -75,11 +69,24 @@ other Git niceties.
 
 ## FAQ
 
-> Why don't any of the commands exist?
+> I installed the plugin and started Vim.  Why don't any of the commands
+> exist?
 
-Fugitive cares about the current file, not the current working directory.
+Fugitive cares about the current file, not the current working
-Edit a file from the repository.  To avoid the blank window problem, favor
+directory.  Edit a file from the repository.
-commands like `:split` and `:tabedit` over commands like `:new` and `:tabnew`.
+
+> I opened a new tab.  Why don't any of the commands exist?
+
+Fugitive cares about the current file, not the current working
+directory.  Edit a file from the repository.
+
+> Why is `:Gbrowse` not using the right browser?
+
+`:Gbrowse` delegates to `git web--browse`, which is less than perfect
+when it comes to finding the right browser.  You can tell it the correct
+browser to use with `git config --global web.browser ...`.  On OS X, for
+example, you might want to set this to `open`.  See `git web--browse --help`
+for details.
 
 > Here's a patch that automatically opens the quickfix window after
 > `:Ggrep`.

doc/fugitive.txt

@@ -40,12 +40,10 @@ that are part of Git repositories).
                         <CR>  |:Gedit|
                         -     |:Git| add
                         -     |:Git| reset (staged files)
-                        a     Show alternative format
+                        cA    |:Gcommit| --amend --reuse-message=HEAD
                         ca    |:Gcommit| --amend
                         cc    |:Gcommit|
-                        ce    |:Gcommit| --amend --no-edit
+                        cva   |:Gcommit| --amend --verbose
-                        cw    |:Gcommit| --amend --only
-                        cva   |:Gcommit| --verbose --amend
                         cvc   |:Gcommit| --verbose
                         D     |:Gdiff|
                         ds    |:Gsdiff|
@@ -59,10 +57,6 @@ that are part of Git repositories).
                         q     close status
                         r     reload status
                         S     |:Gvsplit|
-                        U     |:Git| checkout
-                        U     |:Git| checkout HEAD (staged files)
-                        U     |:Git| clean (untracked files)
-                        U     |:Git| rm (unmerged files)
 
                                                 *fugitive-:Gcommit*
 :Gcommit [args]         A wrapper around git-commit.  If there is nothing
@@ -78,17 +72,17 @@ that are part of Git repositories).
 
                                                 *fugitive-:Gmerge*
 :Gmerge [args]          Calls git-merge and loads errors and conflicted files
-                        into the |quickfix| list.  Opens a |:Gcommit| style
+                        into the quickfix list.  Opens a |:Gcommit| style
                         split window for the commit message if the merge
                         succeeds.  If called during a merge conflict, the
                         conflicted files from the current index are loaded
-                        into the |quickfix| list.
+                        into the quickfix list.
 
                                                 *fugitive-:Gpull*
 :Gpull [args]           Like |:Gmerge|, but for git-pull.
 
                                                 *fugitive-:Gpush*
-:Gpush [args]           Invoke git-push, load the results into the |quickfix|
+:Gpush [args]           Invoke git-push, load the results into the quickfix
                         list, and invoke |:cwindow| to reveal any errors.
                         |:Dispatch| is used if available for asynchronous
                         invocation.
@@ -97,27 +91,27 @@ that are part of Git repositories).
 :Gfetch [args]          Like |:Gpush|, but for git-fetch.
 
                                                 *fugitive-:Ggrep*
-:Ggrep[!] [args]        |:grep|[!] with git-grep as 'grepprg'.
+:Ggrep [args]           |:grep| with git-grep as 'grepprg'.
 
                                                 *fugitive-:Glgrep*
-:Glgrep[!] [args]       |:lgrep|[!] with git-grep as 'grepprg'.
+:Glgrep [args]          |:lgrep| with git-grep as 'grepprg'.
 
                                                 *fugitive-:Glog*
 :Glog [args]            Load all previous revisions of the current file into
-                        the |quickfix| list.  Additional git-log arguments can
+                        the quickfix list.  Additional git-log arguments can
                         be given (for example, --reverse).  If "--" appears as
                         an argument, no file specific filtering is done, and
                         previous commits rather than previous file revisions
                         are loaded.
 
 :{range}Glog [args]     Use git-log -L to load previous revisions of the given
-                        range of the current file into the |quickfix| list.
+                        range of the current file into the quickfix list.  The
-                        The cursor is positioned on the first line of the
+                        cursor is positioned on the first line of the first
-                        first diff hunk for each commit.
+                        diff hunk for each commit.
 
                                                 *fugitive-:Gllog*
 :Gllog [args]           Like |:Glog|, but use the location list instead of the
-                        |quickfix| list.
+                        quickfix list.
 
                                         *fugitive-:Gedit* *fugitive-:Ge*
 :Gedit [revision]       |:edit| a |fugitive-revision|.
@@ -183,9 +177,7 @@ that are part of Git repositories).
                         to the right or bottom, depending on 'diffopt' and
                         the width of the window relative to 'textwidth'.  Use
                         |do| and |dp| and write to the index file to simulate
-                        "git add --patch". For the three-way diff, there is
+                        "git add --patch".
-                        also d2o and d3o pulling the hunk to the middle from
-                        the left or the right window, respectively.
 
                                                 *fugitive-:Gsdiff*
 :Gsdiff [revision]      Like |:Gdiff|, but always split horizontally.
@@ -197,23 +189,14 @@ that are part of Git repositories).
 :Gmove {destination}    Wrapper around git-mv that renames the buffer
                         afterward.  The destination is relative to the current
                         directory except when started with a /, in which case
-                        it is relative to the work tree.  (This is a holdover
+                        it is relative to the work tree.  Add a ! to pass -f.
-                        from before |:Grename| and will be removed.)  Add a !
-                        to pass -f.
 
-                                                *fugitive-:Grename*
+                                                *fugitive-:Gremove*
-:Grename {destination}  Like |:Gmove| but operates relative to the parent
+:Gremove                Wrapper around git-rm that deletes the buffer
-                        directory of the current file.
-
-                                                *fugitive-:Gdelete*
-:Gdelete                Wrapper around git-rm that deletes the buffer
                         afterward.  When invoked in an index file, --cached is
                         passed.  Add a ! to pass -f and forcefully discard the
                         buffer.
 
-                                                *fugitive-:Gremove*
-:Gremove                Like :Gdelete, but keep the (now empty) buffer around.
-
                                                 *fugitive-:Gblame*
 :Gblame [flags]         Run git-blame on the file and open the results in a
                         scroll bound vertical split.  You can give any of
@@ -238,20 +221,20 @@ that are part of Git repositories).
 
                                                 *fugitive-:Gbrowse*
 :Gbrowse                Open the current file, blob, tree, commit, or tag
-                        in your browser at the upstream hosting provider.
+                        in your browser at the upstream hosting provider
-                        If a range is given, it is appropriately appended to
+                        indicated by the "origin" remote.  If a range is
-                        the URL as an anchor.
+                        given, it is appropriately appended to the URL as an
+                        anchor.
 
                         Upstream providers can be added by installing an
                         appropriate Vim plugin.  For example, GitHub can be
                         supported by installing rhubarb.vim, available at
-                        <https://github.com/tpope/vim-rhubarb>.
+                        <https://github.com/tpope/vim-rhubarb>.  (Native
+                        support for GitHub is currently included, but that is
+                        slated to be removed.)
 
-                        The hosting provider is determined by looking at the
+                        If no upstream support is available, a local instance
-                        remote for the current or specified branch and falls
+                        of git-instaweb will be started and used instead.
-                        back to "origin".  In the special case of a "."
-                        remote, a local instance of git-instaweb will be
-                        started and used.
 
 :Gbrowse {revision}     Like :Gbrowse, but for a given |fugitive-revision|.  A
                         useful value here is -, which ties the URL to the