Tweaking VideoFrameTestCase and removing testLearnMoreLink
fixing a nitpick for a logcat message in LifeCycle.java
Tweaking BasicCompanionAdTest.java and super.playVideo()
Adding a test to LifeCycle.java, Tweaking super.playVideo();

##Rationale
Creating a new test after a new bug was found

##Changed Files
**OnceUxUiAutomatorBase.java**
* *playVideo* now catches all its exceptions.

**LifeCycle.java**
* refactored to reduce code amounts somewhat
  * if-else statement in *stringComparison* changed to asserts
  * *stringComparison* changed from boolean to void
  * variables changed from adTime* to currentTime*
  * consolidated the two lifecycle methods into one
  * getting the text from the currentTimeView UiObject was moved to a new string method, *getCurrentTimeFromUiObject*
* New test *testLifeCycleAdBreakSeekControls* that tests if the seek controls appear in an ad break that gets life cycled
Fixing playVideo method.
Removing outdated tests
Convienience commit. New class BackgroundingTestCase.java for Backgrounding Tests.