Roadmap: Nice to have plugins

## New plugins
- ~~[mhinz/vim-startify](https://github.com/mhinz/vim-startify)~~ DONE
- [Shougo/vimshell.vim](https://github.com/Shougo/vimshell.vim)
- ~~[pelodelfuego/vim-swoop](https://github.com/pelodelfuego/vim-swoop)~~ DONE
- ~~[kana/vim-arpeggio](https://github.com/kana/vim-arpeggio)~~ DONE
- `projectile-switch-project` equivalent ? (some ideas: [xolox/vim-session](https://github.com/xolox/vim-session), [Stackoverflow](http://stackoverflow.com/questions/28287402/what-is-the-best-way-to-switch-between-projects-in-vim))
- [vimwiki/vimwiki](https://github.com/vimwiki/vimwiki) to replace `org-mode`?
- [sjl/gundo.vim](https://github.com/sjl/gundo.vim) to replace `undo-tree`

## Alternatives support
- [vim-scripts/tComment](https://github.com/vim-scripts/tComment)
- ~~[scrooloose/nerdcommenter](https://github.com/scrooloose/nerdcommenter)~~ DONE
- ~~[Shougo/vimfiler.vim](https://github.com/Shougo/vimfiler.vim)~~ DONE