fixed issue 19 - duplicate submit button
fixed issue 19 - duplicate submit button

changed ng-if to ng-show for both the button and the warning on the
message form

EFForg/democracy.io,EFForg/democracy.io,RMKD/democracy.io,bartuspan/democracy.io,Volker-E/democracy.io,RMKD/democracy.io,EdenSG/democracy.io,Volker-E/democracy.io,b-carter/democracy.io,EdenSG/democracy.io,bartuspan/democracy.io,beni55/democracy.io,beni55/democracy.io,EdenSG/democracy.io,b-carter/democracy.io,EFForg/democracy.io