Added validation that the user voting on an argument has voted on the proposal the same as the argument's association.
Added validation that the user voting on an argument has voted on the proposal the same as the argument's association.

yaniv14/OpenCommunity,yaniv14/OpenCommunity,nonZero/OpenCommunity,yaniv14/OpenCommunity,nonZero/OpenCommunity,hasadna/OpenCommunity,yaniv14/OpenCommunity,nonZero/OpenCommunity,nonZero/OpenCommunity,hasadna/OpenCommunity,hasadna/OpenCommunity,hasadna/OpenCommunity