consistent naming of apigee headers
Merge pull request #62 from apigee/custom-apigee-headers

consistent naming of apigee headers
Merge pull request #63 from amuramoto/master

Added methods for getting counters
Merge pull request #65 from amuramoto/master

Fixed bad path construction in [Entity destroy]
Merge pull request #66 from amuramoto/master

Added actual uuid validation to isUuidValid:
Added methods to assign and remove permissions, bumped version to 2.0.11