Merge pull request #291 from ph4r05/xmr-versions

xmr: add version fields to check for protocol compatibility

protob/messages-monero.proto

@@ -138,6 +138,8 @@ message MoneroTransactionInitRequest {
         optional MoneroTransactionRsigData rsig_data = 11;
         repeated uint32 integrated_indices = 12;
         optional uint32 client_version = 13;  // connected client version
+        optional uint32 hard_fork = 14;       // transaction hard fork number
+        optional bytes monero_version = 15;   // monero software version
     }
 }