Show Terms of Service link in footer if tos_link is defined in the context.
Show Terms of Service link in footer if tos_link is defined in the context.

Patch by: Todd Larsen
Review by: to-be-reviewed

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging