Merge branch 'pr/279'

Closes #279

Since original author of this PR has deleted their Github account
I squashed their two commits and added one to fix the issue with the
implementation as noted in the PR.

plugin/NERD_commenter.vim

@@ -353,6 +353,7 @@ let s:delimiterMap = {
     \ 'rebol': { 'left': ';' },
     \ 'registry': { 'left': ';' },
     \ 'remind': { 'left': '#' },
+    \ 'renpy': { 'left': '# ' },
     \ 'resolv': { 'left': '#' },
     \ 'rgb': { 'left': '!' },
     \ 'rib': { 'left': '#' },