Gang Mode fixes and improvements
The first of many. Most caused by horrible merge-related accidents.
- Gang converts are no longer revolutionaries
- Revolution controls show up in the TP again
- Gang added to game_options.txt defaulting to 0
- Clarified some help text strings
Made the text explaining membership visibility more visible
- Removes the useless has_been_rev var
- Reworded intercept report to discourage security from inadvertently causing a gang to win.
- Recaller use is logged
- Made the text explaining membership visibility more visible
Merge pull request #4986 from Ikarrus/gangfixes

Gang Mode fixes and improvements