Updating readme with Contribution section
updating podfile
Merge remote-tracking branch 'parent/master'

* parent/master:
  Change MenuViewController to load and keep other VCs in memory.

Conflicts:
	CocoaHeadsBNE/Podfile
	CocoaHeadsBNE/Podfile.lock
Merge pull request #12 from mattconnolly/master

Updating readme and podfile