[SUREFIRE-829] Support inheritance while running test cases belonging to a particular category/group
Submitted by: Gayathri Muralidharan

o Suggested changes in FilterFactory had to be rewritten, as the code has changed significantly compared to the patch reference
[maven-release-plugin] prepare release surefire-2.15
[maven-release-plugin] prepare for next development iteration
use correct maven-plugin-plugin version
[SUREFIRE-1003] Fix typo in documentation of includes property
[SUREFIRE-1005] Fix test pattern matching in scanned dependencies