Squashed '.vim/bundle/signify/' changes from 2b05c7f..5baf161

5baf161 Skip help files by default
0725f93 Fix help filetype skipping
0261a6a Improve :SyDebug
732de1f Doc: change tags to common conventions
7065120 Doc: add possible values for g:signify_vcs_list
4d3674d Perforce: check for server availability before requesting a diff
9ca274d Fix error when toggling on a new file
96ed0cc doc/signify.txt: Add perforce to supported VCS
7586fa5 Merge pull request #123 from sahands/master
9fdaf59 Minor grammar changes in README.md

git-subtree-dir: .vim/bundle/signify
git-subtree-split: 5baf161ae41b179dc4685f109b8824e0bcc0b147
Merge latest Sy, 5baf161ae41b179dc4685f109b8824e0bcc0b147