Marked keva namespace coin as unspendable.

src/txdb.cpp

@@ -339,7 +339,7 @@ bool CBlockTreeDB::WriteBatchSync(const std::vector<std::pair<int, const CBlockF
 void CKevaCache::writeBatch (CDBBatch& batch) const
 {
   for (EntryMap::const_iterator i = entries.begin(); i != entries.end(); ++i) {
-    auto name = std::make_pair(std::get<0>(i->first), std::get<1>(i->first));
+    std::pair<valtype, valtype> name = std::make_pair(std::get<0>(i->first), std::get<1>(i->first));
     batch.Write(std::make_pair(DB_NAME, name), i->second);
   }
 

src/wallet/wallet.cpp

@@ -2259,6 +2259,9 @@ void CWallet::AvailableCoins(std::vector<COutput> &vCoins, bool fOnlySafe, const
                 }
 
                 bool fSpendableIn = ((mine & ISMINE_SPENDABLE) != ISMINE_NO) || (coinControl && coinControl->fAllowWatchOnly && (mine & ISMINE_WATCH_SOLVABLE) != ISMINE_NO);
+                if (CKevaScript::isKevaScript(pcoin->tx->vout[i].scriptPubKey)) {
+                    fSpendableIn = false;
+                }
                 bool fSolvableIn = (mine & (ISMINE_SPENDABLE | ISMINE_WATCH_SOLVABLE)) != ISMINE_NO;
 
                 vCoins.push_back(COutput(pcoin, i, nDepth, fSpendableIn, fSolvableIn, safeTx));