Verbose welcome message. Refs #7654.

The SettingsTest.py is python api version 1. In version 2, the
welcomeMessage function is no longer exposed to python
Simplified version display. Refs #7654
Removed api v1 test. Refs #7654
Remove test from Cmake. Refs #7654
Update the welcome string. Refs #7654
Merge remote branch 'origin/feature/7654_WelcomeMessage'