[vim] add unite-rails settings.
[vim] add neosnippets settings.
[vim] change UniteResume key-bindings.
[vim] add textobj.
[vim] add unite plugin for ruby, git, quick fix, tag. set <ESC> key for unite_exit.
[vim] add textmanip settings.
[vim] add key mapping.
[vim] replace zencoding to emmet.
[vim] add scroll off settings.
[vim] add easy motion and clever-f.
[vim] add dbext, quick run and qfreplace.