Allow for disabling individual languages, closes #66

ftplugin/tt2html.vim

@@ -1,3 +1,5 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'perl') == -1
+  
 " Language:      TT2 embedded with HTML
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
 " Homepage:      http://github.com/vim-perl/vim-perl
@@ -11,3 +13,5 @@ endif
 
 " Just use the HTML plugin for now.
 runtime! ftplugin/html.vim ftplugin/html_*.vim ftplugin/html/*.vim
+
+endif