Adds an empty test case to the test case controller and nullifies the test cases controller data source on category delete.
Formatting changes
Added static method for generating a blank test case; For some reason passing [[TREXTestCase alloc] init] would crash the app because of a nil string...
[#49715475] Fixes Fonts in TextViews
Fixed formatting and fixed fonts for add category view as well.
Merge branch 'develop' of github.com:joshpc/Testosaurus into bugfixes/49715475-fixed-fonts-in-textviews
Merge branch 'develop' of github.com:joshpc/Testosaurus into bugfixes/delete-category-child-persistence1
Removed static case and changed to alloc init.
Changed Magic numbers to constants for font size.
Merge pull request #34 from joshpc/bugfixes/49715475-fixed-fonts-in-textviews

[#49715475] Fixes Fonts in TextViews
Merge pull request #33 from joshpc/bugfixes/delete-category-child-persistence

Adds an empty test case to the test case controller and nullifies the te...
Merge remote-tracking branch 'origin/develop' into bugfixes/50278227-tweak-step-view