Have beacon report specifically filter with datatype beacon; since be…

…acon alone now displays the beaconalt; as well. in turn beacon report decodesbase64 the contract so when it does these beaconalt; entries it can put out binary data results. and noting with decodebase64 be able to seg fault in limited situations this should be in place to prevent that possibility

src/rpcblockchain.cpp

@@ -3577,7 +3577,7 @@ Array GetJSONBeaconReport()
     Array results;
     Object entry;
     entry.push_back(Pair("CPID","GRCAddress"));
-    std::string datatype="beacon";
+    std::string datatype="beacon;";
     std::string row;
     for(const auto& item : AppCacheFilter(datatype))
     {