chore (Module) Export function that either creates a RelationResolver…

… or defines an angular RelationResolverModule

src/index.coffee

@@ -1 +1,8 @@
-module.exports = {}
+
+module.exports = (angular) ->
+
+  if angular?
+    require('./RelationResolverModule')(angular)
+  else
+    RelationResolver = require('./RelationResolver')
+    new RelationResolver

test/SmokeTestSpec.coffee

@@ -1,5 +1,16 @@
 require('chai').should()
 
+createRelationResolver = require('../src')
+
 describe "ag-relation-resolver root", ->
   it "should be defined", ->
-    require('../src').should.exist
+    createRelationResolver.should.exist
+
+  it "is a function", ->
+    createRelationResolver.should.be.a 'function'
+
+  it 'creates a relation resolver when called without arguments', ->
+    createRelationResolver().should.have.property('prepare').be.a 'function'
+
+  it.skip 'creates an angular module and returns the module name when called with angular as an argument', ->
+    createRelationResolver(angular).should.be.a 'string'