DELTA-1452
ClearGroupCache does not clear gradle 1.11 caches

refactoring to remove the use of eachDirRecurse
refactoring to make regex syntax consistent
[DELTA-1452] refactored to reduce nesting
[DELTA-1452] adding additional context to test names
Merge pull request #23 from BancVue/DELTA-1452_refactor_reduce_nested_blocks

[DELTA-1452] refactored to reduce nesting
Merge pull request #22 from BancVue/DELTA-1452_refactor

DELTA-1452 add ClearGroupCache support for gradle 1.9+