Preparing tests for multiple app inheritence
Composing the test
Review the creation of templates in MultiAppTestCase
Finish the tests
Implement the multiple empty namespace without infinite recursion
Make the tests working
Implement the reset method
Make the loader functionaly working
Add missing docstrings
Refactor by moving the circular import loop control at the right level
More readable version of the code
Merge branch 'feature/multiple-empty-namespace' into develop