Return the correct RPC error when trying to send coins while wallet is unlocked for staking only.
Return the correct RPC error when trying to send coins while wallet is unlocked for staking only.

ahmedbodi/poscoin,reddcoin-project/reddcoin,Cannacoin-Project/Cannacoin,Cannacoin-Project/Cannacoin,ahmedbodi/poscoin,joroob/reddcoin,bmp02050/ReddcoinUpdates,ahmedbodi/poscoin,reddcoin-project/reddcoin,reddcoin-project/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin,bmp02050/ReddcoinUpdates,coinkeeper/2015-06-22_18-46_reddcoin,joroob/reddcoin,reddcoin-project/reddcoin,ahmedbodi/poscoin,joroob/reddcoin,Cannacoin-Project/Cannacoin,reddcoin-project/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin,coinkeeper/2015-06-22_19-10_cannacoin,bmp02050/ReddcoinUpdates,reddink/reddcoin,ahmedbodi/poscoin,coinkeeper/2015-06-22_18-46_reddcoin,reddink/reddcoin,reddink/reddcoin,reddink/reddcoin,bmp02050/ReddcoinUpdates,coinkeeper/2015-06-22_18-46_reddcoin,joroob/reddcoin,reddcoin-project/reddcoin,coinkeeper/2015-06-22_18-46_reddcoin,Cannacoin-Project/Cannacoin,Cannacoin-Project/Cannacoin,reddink/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin,bmp02050/ReddcoinUpdates,coinkeeper/2015-06-22_18-46_reddcoin,joroob/reddcoin,coinkeeper/2015-06-22_19-10_cannacoin