Moved several boolean functions, regarding what providers can and can't do, out of the publish activity controller and into a continuation of the JRProvider class in the publish activity impl file.
Moved several boolean functions, regarding what providers can and can't do, out of the publish activity controller and into a continuation of the JRProvider class in the publish activity impl file.

jwilson-rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios,Rodale/jump.ios,jwilson-rodale/jump.ios