Improved Gradle build script with FlexPMD static code analyzis
Improved Gradle FlexPMD task with HTML report output
raised AIR namespace version in samples to 14.0
disabled starting and stopping of Starling in samples if running on the Desktop (closes #599)

Some simulator versions report ACTIVATE/DEACTIVATE when losing/gaining focus, this should
prevent any problems with those.
add security error handler
Merge pull request #605 from johnikx/feature-security-error-handler

added security error handler to asset loading
Merge pull request #603 from vpmedia/feature-tdd-refactor

Feature TDD refactor
Refactored Gradle script to plug-in-less (dropped GradleFX integration)
Fixed TravisCI test running
Update to AIR SDK v15
Merge pull request #611 from vpmedia/stage3d-unit-test

Refactored Gradle script to plug-in-less (dropped GradleFX integration)
tests copy application package structure
AssetManager test
change test runner to be able to set visualDisplayRoot
add missing empty line
add test results to build output
gradle build uses custom test runner
fail build when any test failed
fix test.swf compilation
avoiding some touch handling problems after exception in a user's touch handler (closes #616)