Squashed 'bundle/vim-coffee-script/' changes from eb81ecc..18c6852

18c6852 Don't update makeprg on BufWritePost
4df54e1 update makeprg before write buf, since we suggest autobuild after write buf with BufWritePost

git-subtree-dir: bundle/vim-coffee-script
git-subtree-split: 18c68524ab8a043a566bbe227ea8f81ab922d092
Merge commit '96dac404bcd868e64b230562e2b3b953714c9b90'
use pathogen infect to load bundles