Added .kv to auto install list

Kivy is a python framework for building desktop and android apps, it has a specific language called Kv language and files of this language should have `.kv` extension.
Merge pull request #714 from k1-hedayati/master

Added .kv to auto install list
fix electric-layout-post-self-insert-function autoload
Merge pull request #715 from toctan/fix-electric

fix electric-layout-post-self-insert-function autoload
Merge remote-tracking branch 'bbatsov/master'

* bbatsov/master:
  fix electric-layout-post-self-insert-function autoload
  Added .kv to auto install list