Remove old Ert library (used by GUI)
GUI cleanup step 1
Remove old GUI files.
Added some comments related to old enums. To be removed after implementation.
Added models and mixins.
Cleanup of widgets. Adapted to new model structure.
Added welcome message and a help file.
Added tests for model and observable
Remove old enkf test.
Fixed model tests
Cleanup of model tests
New GUI entry code
New GUI pages.
Merge branch 'master' of 204.232.175.90:Ensembles/ert into gui_cleanup
Updated CMakeLists
Merge pull request #191 from jepebe/gui_cleanup

The initial version of the new GUI