Merge branch 'release/1.6.5' into develop
Added removeObserver() for access via Platform::unsubscribe()
Merge branch 'develop' of github.com:dreamfactorysoftware/lib-php-common-platform into develop
1. Ensure base file and schema services trigger events.
2. Fix for memcache set, wrong key/value being used.
swagger update
rp
Merge branch 'release/1.6.6'