Docs Fixes, bug fixes, and google/apiclient-services updates
- updates google/apiclient-services to 0.7 (#1053)
- Highlight class constant in docs on GitHub (#1038)
- Fix issue tracker link (#1039)
- uses syslog handler on appengine (#1025)
- fixes issue with BC breaking google/auth change (#1028)
- Update Client.php (#1030)
- Remove references to Google_Config (#1029)
- updates auth and uses in-memory cache (#1019)
- bump apiclient-services version to 0.8(#1006)