enabled GsonBuilder.registerTypeHierarchyAdapter since head is now for Gson 1.7
enabled GsonBuilder.registerTypeHierarchyAdapter since head is now for Gson 1.7

gv2011/jsoncore,testcenter/gson,DanySK/gson-extras,mbrukman/gson,todoooo/gson,todoooo/gson,DanySK/gson-extras,google/gson,DanySK/gson-extras,mbrukman/gson,testcenter/gson,testcenter/gson,mbrukman/gson,todoooo/gson