Add a note on some autocmd
Removed unused TODO.md file
Moved part of the vimrc to a plugin
Remove personal-UltiSnips since I no longer use Ultisnips
Removed some dead airline config
Load lazy some useful plugin that are used rarely
Switch back to delimitMate
Add autocmd for restore last 'background' options
Load lazily vim-rspec and change the default command

Since I `set t_ti= t_te=` I like some context and the default command clear the
terminal so I remap the command
Remove dead settings for vim-smartinput and add some for delimitMate
Increase scrolloff
Remove useless mapping