Changed leader and external programs for format

* par is used for the gq command
* uncrustify can be called within vim with the :call Uncrustify('cpp')
  call

Changed leader key to 'space'

Signed-off-by: Mattijs Korpershoek <mattijs.korpershoek@gmail.com>
Merge branch 'master' of github.com:kir0gawa/dotfiles