Fixed compilation errors: removed using namespace from hpp file. This led to pulling cv::ACCESS_MASK to global namespace where conflict with the same name in 'windows.h'

Conflicts:
	apps/traincascade/boost.cpp

apps/traincascade/imagestorage.cpp

@@ -8,6 +8,7 @@
 #include <fstream>
 
 using namespace std;
+using namespace cv;
 
 bool CvCascadeImageReader::create( const string _posFilename, const string _negFilename, Size _winSize )
 {