Add rpc command 'getunconfirmedbalance' to obtain total unconfirmed balance

Conflicts:
	src/rpcserver.cpp

src/rpcserver.cpp

@@ -253,6 +253,7 @@ static const CRPCCommand vRPCCommands[] =
     { "encryptwallet",          &encryptwallet,          false,     false,      true },
     { "validateaddress",        &validateaddress,        true,      false,      false },
     { "getbalance",             &getbalance,             false,     false,      true },
+    { "getunconfirmedbalance",  &getunconfirmedbalance,  false,     false,      true },
     { "move",                   &movecmd,                false,     false,      true },
     { "sendfrom",               &sendfrom,               false,     false,      true },
     { "sendmany",               &sendmany,               false,     false,      true },

src/rpcserver.h

@@ -135,6 +135,7 @@ extern json_spirit::Value verifymessage(const json_spirit::Array& params, bool f
 extern json_spirit::Value getreceivedbyaddress(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getreceivedbyaccount(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value getbalance(const json_spirit::Array& params, bool fHelp);
+extern json_spirit::Value getunconfirmedbalance(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value movecmd(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value sendfrom(const json_spirit::Array& params, bool fHelp);
 extern json_spirit::Value sendmany(const json_spirit::Array& params, bool fHelp);

src/rpcwallet.cpp

@@ -767,6 +767,15 @@ Value getbalance(const Array& params, bool fHelp)
     return ValueFromAmount(nBalance);
 }
 
+Value getunconfirmedbalance(const Array &params, bool fHelp)
+{
+    if (fHelp || params.size() > 0)
+        throw runtime_error(
+                "getunconfirmedbalance\n"
+                "Returns the server's total unconfirmed balance\n");
+    return ValueFromAmount(pwalletMain->GetUnconfirmedBalance());
+}
+
 
 Value movecmd(const Array& params, bool fHelp)
 {