made confirm function less picky about it's responses.
Adds .vim/ftplugin to vim config

Sync the ftplugin directory under .vim so that language-specific configs
can be synced with mackup.
Merge pull request #343 from exiva/annoyancefix

made confirm function less picky about it's responses.
Merge pull request #348 from lamielle/vim-ftplugin

Adds .vim/ftplugin to vim config