Update to automate the date in the display.
Add more guilty parties to the display

lp:~trb143/openlp/about (revision 2715)
[SUCCESS] https://ci.openlp.io/job/Branch-01-Pull/1890/
[SUCCESS] https://ci.openlp.io/job/Branch-02-Functional-Tests/1801/
[SUCCESS] https://ci.openlp.io/job/Branch-03-Interface-Tests/1740/
[SUCCESS] https://ci.openlp.io/job/Branch-04a-Windows_Functional_Tests/1476/
[SUCCESS] https://ci.openlp.io/job/Branch-04b-Windows_Interface_Tests/1066/
[SUCCESS] https://ci.openlp.i...