Merge pull request #11 from allevato/master

Timeline notification now updates photo caption instead of inserting new...
Upgraded PHP API client library to 0.6.6 (which enables XE8 features), some small code style cleanup
Merge pull request #12 from googleglass/upgrade-client-lib

Upgraded PHP API client library to 0.6.6 (which enables XE8 features), s...
Added identifying information to location card.