Making Changes Suggested by *pajatopmr*

##Changed Files
AdOverlayCountdown.java
BasicCompanionAdTest.java
LifeCycle.java
* added javadoc comments to the test methods **This will be done on a case by case basis as more tests are finalized.**
* reordered methods to follow more appropriate preestablished patterns. **This will be done on a case by case basis as more tests are finalized.**
LifeCycle.java
* introduced adBreakHandler utility method, to cut down on repeated code
LifeCycle.java
UiAutomatorTest.java
* removed extranneous setUp and tearDown methods
UiAutomatorBaseTest.java
* moved exception notice to javadoc comment
* made the step by step comments more precise