Fixing namespacing for core driver

Author: Michael Fero

cpp-driver/gtests/src/unit/tests/test_protocol_version.cpp

@@ -21,7 +21,7 @@
 #include "cassandra.h"
 #include "protocol.hpp"
 
-using cass::ProtocolVersion;
+using datastax::internal::core::ProtocolVersion;
 
 class ProtocolVersionUnitTest : public Unit {};
 

cpp-driver/src/monitor_reporting.cpp

@@ -16,9 +16,14 @@
 
 #include "monitor_reporting.hpp"
 
+using namespace datastax;
 using namespace datastax::internal::core;
 
+namespace datastax { namespace internal { namespace core {
+
 MonitorReporting* create_monitor_reporting(const String& client_id, const String& session_id,
                                            const Config& config) {
   return new NopMonitorReporting();
 }
+
+}}} // namespace datastax::internal::core

cpp-driver/src/protocol.cpp

@@ -21,6 +21,7 @@
 #define DSE_PROTOCOL_VERSION_BIT 0x40
 #define DSE_PROTOCOL_VERSION_MASK 0x3F
 
+using namespace datastax;
 using namespace datastax::internal::core;
 
 ProtocolVersion::ProtocolVersion()