[vim] Bundle update
[rbenv] Add ruby-build
[rbenv] Add rbenv-default-gems
[rbenv] Add rbenv-aliases
[rbenv] Add rbenv-communal-gems
[rbenv] Add rbenv-ctags
[rbenv] Add gem-ctags and gem-browse to default gems list
[vim] Add vim-rbenv
[bash] Fix path used in stop mongo
[git] Explicitly ignore bin/pprof.rb