Merge pull request #180 from dan98765/expose_GraphQLEnumValue_in_top_level_init_file

Expose GraphQLEnumValue in top level init file to follow existing convention

Author: syrusakbary

graphql/__init__.py

@@ -38,6 +38,7 @@
  GraphQLInterfaceType,
  GraphQLUnionType,
  GraphQLEnumType,
+ GraphQLEnumValue,
  GraphQLInputObjectType,
  GraphQLList,
  GraphQLNonNull,
@@ -213,6 +214,7 @@
  'graphql',
  'GraphQLBoolean',
  'GraphQLEnumType',
+ 'GraphQLEnumValue',
  'GraphQLFloat',
  'GraphQLID',
  'GraphQLInputObjectType',