Delete fugitive buffer on close
Added gitv : gitk-inside-vim
Added NeoSnippet + NeoComplete bundle.

    * Removed UltiSnips.
    * Use NeoComplete with clang_complete.
Switched from vim-narrow to NrrwRgn
Added vim-expand-region
gundo -> undotree
Added unite-help source
Added vim-indent-guides
Reselect text after shifting
Removed annoyed clang_complete's quickfix window.