Allow for disabling individual languages, closes #66

ftplugin/perl.vim

@@ -1,3 +1,5 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'perl') == -1
+  
 " Vim filetype plugin file
 " Language:      Perl
 " Maintainer:    vim-perl <vim-perl@googlegroups.com>
@@ -87,3 +89,5 @@ let b:match_words = '\<if\>:\<elsif\>:\<else\>'
 " Restore the saved compatibility options.
 let &cpo = s:save_cpo
 unlet s:save_cpo
+
+endif