Adding ‘cheat’ button so user can peek at answer.

- Adding new 'cheat' button on main screen.
- Adding new activity and layout for 2nd screen that offers user chance to cheat by peeking at answer.
- When user clicks 'cheat' button, start our new activity (storing the T/F answer for that question in an extra). This CheatActivity gives the user a chance to back out and NOT cheat, so we pass back whether they cheated or not in an intent back to main activity. This result is used so the main activity can display a new toast ‘judgement_toast’ instead of saying Correct/Incorrect when the user cheats.
Fixing edge-case ‘cheating’ scenarios.

The app now remembers when the user has ‘cheated’ and viewed the answer to a specific question. This caters for:
- When user rotates on CheatActivity screen after viewing answer.
- When user rotates on QuizActivity screen for that same question.
- If user presses Next until the question they cheated on comes back around.
Added subtitle “Bodies of Water” to ActionBar

- Added a subtitle to the action bar that informs user what area of geographic knowledge the app is testing.
- Since the ActionBar class was only intro’d in API level 11, first check to only run code if the device’s version of Android >= 11.
- Removed question not related to theme ‘bodies of water'
Include “API level xy” text on Cheat screen

Adding a TextView widget to Cheat layout that reports the device’s API level.