Rework messages a bit
Rework messages a bit

The main point is to display the interpolated message in the settings
page, so "Help TED reach a global audience", instead of "Help
%(team)s reach a global audience".

pculture/unisubs,norayr/unisubs,ofer43211/unisubs,ReachingOut/unisubs,pculture/unisubs,norayr/unisubs,wevoice/wesub,wevoice/wesub,ofer43211/unisubs,pculture/unisubs,ReachingOut/unisubs,eloquence/unisubs,eloquence/unisubs,ofer43211/unisubs,wevoice/wesub,ReachingOut/unisubs,pculture/unisubs,ReachingOut/unisubs,ofer43211/unisubs,norayr/unisubs,eloquence/unisubs,eloquence/unisubs,norayr/unisubs,wevoice/wesub