Some refactoring to improve Cocoapod path.
Adding License and readme to XCode.
Updating the pod spec with new path.
Also setting tag and version to 1.0.0.
Adding SubClass for DropdownMenuController. Moving Readme, podspec and License to outside core files.
Moving things around. No code changes.
More renaming and moving.
Added IonIcons to example.
Added icons to menu buttons.
Added triangle indicating open menu.
Made buttons in example larger.
Updated Readme and Screen shots.