Merge tag 'v0.7.5'

client/README.md

client/client.go

client/doc.go

client/examples_test.go

client/value.go

cmd/dgraph/main.go

cmd/dgraphloader/main.go

dashboard/build/asset-manifest.json

dashboard/build/index.html

dashboard/build/static/js/main.5f944870.js

dashboard/src/actions/index.js

dashboard/src/containers/GraphContainer.js

dashboard/src/containers/Helpers.js

gql/parser.go

gql/parser_test.go

protos/graphp/graphresponse.pb.go

protos/graphp/graphresponse.proto

query/codec.go

query/query.go

query/query_test.go