Remove JSON Spirit wrapper, remove JSON Spirit leftovers

- implement find_value() function for UniValue
- replace all Array/Value/Object types with UniValues, remove JSON Spirit to UniValue wrapper
- remove JSON Spirit sources

src/test/rpc_wallet_tests.cpp

@@ -31,11 +31,12 @@
 #include <boost/format.hpp>
 #include <boost/filesystem.hpp>
 
+#include "univalue/univalue.h"
+
 using namespace std;
-using namespace json_spirit;
 
 extern UniValue createArgs(int nRequired, const char* address1 = NULL, const char* address2 = NULL);
-extern Value CallRPC(string args);
+extern UniValue CallRPC(string args);
 
 extern CWallet* pwalletMain;
 
@@ -56,7 +57,7 @@ BOOST_AUTO_TEST_CASE(rpc_addmultisig)
     // new, compressed:
     const char address2Hex[] = "0388c2037017c62240b6b72ac1a2a5f94da790596ebd06177c8572752922165cb4";
 
-    Value v;
+    UniValue v;
     CBitcoinAddress address;
     BOOST_CHECK_NO_THROW(v = addmultisig(createArgs(1, address1Hex), false));
     address.SetString(v.get_str());
@@ -87,13 +88,13 @@ BOOST_AUTO_TEST_CASE(rpc_addmultisig)
 BOOST_AUTO_TEST_CASE(rpc_wallet)
 {
     // Test RPC calls for various wallet statistics
-    Value r;
+    UniValue r;
 
     LOCK2(cs_main, pwalletMain->cs_wallet);
 
     CPubKey demoPubkey = pwalletMain->GenerateNewKey();
     CBitcoinAddress demoAddress = CBitcoinAddress(CTxDestination(demoPubkey.GetID()));
-    Value retValue;
+    UniValue retValue;
     string strAccount = "";
     string strPurpose = "receive";
     BOOST_CHECK_NO_THROW({ /*Initialize Wallet with an account */