Several updated libraries from ELPA.

New and notable :

* Rolled back Rainbow-mode to 0.6 (0.7 is broken)
* Added git-gutter / git-gutter-linum for git change symbols in the
  fringe
* Added puppet mode, for writing puppet manifests
* Added Android mode (not yet investigated, generally happy doing this
  by hand at the moment.)
* Ack menu and Ack and a half, (I get by with Grep and sometimes us Ag,
  but what's the harm in a few more search tools.)
* Turned off autopair-global-mode in custom.el - perhaps it interferred
  with Flex-autopair-mode. (I did have to switch it off and on at
  start.)

Git-gutter and Ack-menu added a couple dependencies. (Just fringe-helper and
mag-menu as far as I can tell.)