MyEdu vimrc.
Merge branch 'master' into myedu
Merge branch 'master' into myedu
Merge branch 'master' into myedu
another try to fix tmux control keys.
Merge branch 'master' into myedu

Conflicts:
	vimrc
Upgrade syntastic
Use jshint by default
Merge remote-tracking branch 'origin/myedu'

Conflicts:
	vimrc
Add Markdown plugin