Bump sdk dep to ~v2.7
Bump sdk dep to ~v2.7

Livefyre/streamhub-wall,gobengo/streamhub-faces,gobengo/streamhub-faces,amoradi/streamhub-wall,Livefyre/streamhub-wall,amoradi/streamhub-wall,amoradi/streamhub-wall,amoradi/streamhub-wall