Minor update to readme.

Turns out I have no idea what year it is.
Can query current popover controller
UIPopoverController stub can be dismissed, queried for visibility, and queried for arrow direction. Added test coverage of all UIPopoverController methods.
Fixed Spec errors when run against iOS 6 (travis runs iOS 6, apparently)
Can reset currentPopoverController.
Add specs for UIActionSheet stubs and extensions
Wrote specs assuming ARC, add compiler flag to file to actually build with ARC
Add support for triggering table view cell row deletion actions
Handle exception cases
Fix target membership
Current popover is reset in CedarHooks +afterEach
Updates podspec to fix lint errors

- This should be revisited once the project is reorganized a bit
Locks us to newly created v0.0.3 tag
Update LICENSE.markdown

Seriously what year is it
Include mention of UIPopoverController stub in full list in README.
Added arm64 to iOS Static Lib build targets
Find delete controls more robustly
Fix memory leak in UIImageView+PivotalCore
Update Cedar to latest
Make iOS 7.0 the default iOS runtime SDK for specs