fix empty fields being included parent nested mutation (#97)

added multi language support on predicate schema (#86)

* added multi language support on predicate schema

* fix schema unit test

Fix unique check on update (#83)

* fix unique check on update

* added unit tests

Merge pull request #77 from dolan-in/v2

Merge v2 to master

added multiple queries into the query block (#65)

use reflectwalker for setting types (#61)

* use reflectwalker for setting types

* upgrade travis ci go version

fixed condition on CreateOrGet (#60)

missing query in NodesAndCount (#59)

fix query for NodesAndCount to include order (#56)

return dgraph.type in All query (#49)