Update DEVELOPER.md

The documentation says the grunt launch task should use angular 1.3.7 however the build has angular version 1.3.7.

Author: JLLeitschuh

DEVELOPER.md

@@ -19,10 +19,10 @@ http://localhost:9003/docs/#/tutorial to browse each tutorial.
 <br/> no-e2e - eliminate protractor tests
 <br/> angular=n.n.n - specify a specify angular version to run unit tests against
 <br/> core - run only the tests for the core code, skip features
-<br/> fast - alias for --no-e2e --core --angular=1.3.7
+<br/> fast - alias for --no-e2e --core --angular=1.3.6
 
 ```
-grunt dev --no-e2e --angular=1.3.7
+grunt dev --no-e2e --angular=1.3.6
 ```
 
 # Code Structure
@@ -418,4 +418,4 @@ Then push the changes to origin/master and Travis will take care of the rest!
 
     git push origin master --tags
 
-**NOTE:** Nuget must be pushed to manually
+**NOTE:** Nuget must be pushed to manually