Changed SMState interface (how the ownership of the image is transferred)

git-svn-id: http://rtabmap.googlecode.com/svn/branches/0.3/rtabmap@70 f169173b-cf89-36c8-b27e-44dbe73f0c83

corelib/src/Rtabmap.cpp

@@ -1243,6 +1243,7 @@ void Rtabmap::process()
 	delete smState;
 }
 
+// ownership is transferred
 void Rtabmap::addSMState(SMState * data)
 {
 	ULOGGER_DEBUG("");
@@ -1361,6 +1362,7 @@ void Rtabmap::setWorkingDirectory(std::string path)
 	}
 }
 
+// ownership is transferred
 void Rtabmap::process(SMState * data)
 {
 	if(!this->isRunning())