Copy Wincent's term.vim

This will:

  - Change the shape of the cursor when in insert mode
  - Improve mouse controls
  - Improve focus reporting
  - Make use of "bracketed paste mode" to automatically set paste mode
    when pasting content into vim

Taken from:

  https://github.com/wincent/wincent/blob/master/.vim/plugin/term.vim
Add "SOme" -> "Some" to vim abbreviations

Preventing me from making this typo again.