Some minor cleaning and fixes

Hit a couple of more simple todo questions in the code
Fixed an mentions issue (missing & in the function so it was not updating the passed array)
Some mundane formatting things
One array that seemed wrong to me, maybe I'm missing something https://github.com/Spuds/Elkarte/commit/8d9b9d5e515ebfcc0eecbb3dd2272747171a2709
One template issue when the : part of the tertiary ran