Make sure we handle having a "problems" directory under the application - closes #3184
Adding ScalarCoupleable interface to ElementUserObjct (closes #3265)

It was not able to use scalar variables in anythong derived from
ElementUserObject, because it was missing ScalarCoupleable interface.
Merge pull request #3263 from permcody/peacock

Make sure we handle having a "problems" directory under the application
Merge pull request #3266 from andrsd/scalar-coupleable-for-elemental-user-objects

Adding ScalarCoupleable interface to ElementUserObjct (closes #3265)