Change `getSelectedCard()` to `getItem()`
Issue #178: Stub out `BaseballCardMultiChoiceModeListener`
Issue #178: Increase `minSdkVersion` to 11
Issue #178: Create menu for contextual action bar
Issue #178: Implement delete menu item
Issue #178: Refactor code to delete cards to `BaseballCardList`
Issue #178: Check checkbox when a single `CheckBox` is checked.
Issue #178: Fix bug in calling `getItem()`
Merge branch 'devel/android' into issue/178-contextual-action-bar

Conflicts:
	gradle/android/src/androidTest/java/bbct/android/common/activity/test/BaseballCardListWithDataTest.java
Issue #178: Change `CheckedTextView`s to `CheckBox`es
Issue #178: Implement some tests
Issue #178: Modify `testMarkAll()`
Issue #178: More test cleanup
Issue #178: Partial implementation
Issue #178: Fix `deleteSelectedCards()`
Issue #178: Tweak tests some more
Issue #178: Fix deleting cards
Implement split action bar
Fix bug in ad implementation that leaked a BroadcastReceiver
Fix tests for scrolling on smaller screens