Push notifications, delegate methods, cleaning up delegate.
Deprecated is_modal?
Adding the ability to remove status bar

Also changed has_nav_bar? to nav_bar?
Added on_unload, PushNotification methods, tests
on_registration, not on_register
A commit just for @macfanatic .
Fix per @rheoli suggestion
Merge branch 'version-0.7' into feature/delegate_improvements
Fix per @rheoli
Merge branch 'version-0.7' into feature/delegate_improvements
Comment
transparent bgcolor of the labels
Merge pull request #103 from rheoli/version-0.7-bgcolor

Transparent backgroundColor of the labels
Merge branch 'version-0.7' into feature/delegate_improvements
Merge pull request #91 from clearsightstudio/feature/delegate_improvements

PM::Delegate improvements, PushNotification object & methods
README updates
Fixed issue #104
Add :searchable and :search_help_text to cell properties.
Allow users to specify JUST the image without the hash (if they don't want to pass other options to the cell image attribute)
Allow the user to send a string instead of a UIImage to a cell image attribute.