Update to JUnit 4.10 and use RuleChainer to guarantee order#1

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nealeu wants to merge 3 commits intoeeichinger:masterfrom

whirlwind-match:master

Commits on Feb 2, 2012

Java version -> 1.6 + check TakesScreenshot before cast
Neale Upstone
committed
Clean up Java compile warnings
Neale Upstone
committed

Commits on Feb 17, 2012

Migrate to JUnit 4.10 and use RuleChainer to guarantee order
Neale Upstone
committed