+ rack (>= 1.0, < 3)
+ omniauth-facebook (3.0.0)
+ omniauth-oauth2 (~> 1.2)
+ omniauth-github (1.1.2)
+ omniauth (~> 1.0)
+ omniauth-oauth2 (~> 1.1)
+ omniauth-google-oauth2 (0.4.1)
+ jwt (~> 1.5.2)
+ multi_json (~> 1.3)
+ omniauth (>= 1.1.1)
+ omniauth-oauth2 (>= 1.3.1)
+ omniauth-oauth2 (1.4.0)
+ oauth2 (~> 1.0)
+ omniauth (~> 1.2)