* Valve220: use face projection by default

* Valve220: Project {axial, ortho, cam, from face} functions
	* conversions between AP, BP and Valve220 brush types; conversions to Brush Primitives and Valve220 formats are lossless
	* detect brush format and automatically convert to current one on map Import and Paste
	* Valve220: fixed Reset function, implemented Rotate one
	* Valve220: fix overwriting basis on brush clone/map import ( in Face( Face ) constructor )
	* BP: fix: normalize shift values during import, arbitrary projections and face->fit
	* Valve220: fix texture lock for scaling, fix for negative texdef.scale

include/imap.h

@@ -46,7 +46,6 @@ virtual void exportTokens( TokenWriter& writer ) const = 0;
 };
 
 #include "iscenegraph.h"
-#include "ibrush.h"
 
 class EntityCreator;
 
@@ -62,7 +61,6 @@ class MapFormat
 public:
 INTEGER_CONSTANT( Version, 2 );
 STRING_CONSTANT( Name, "map" );
-mutable EBrushType m_detectedFormat;
 
 /// \brief Read a map graph into \p root from \p outputStream, using \p entityTable to create entities.
 virtual void readGraph( scene::Node& root, TextInputStream& inputStream, EntityCreator& entityTable ) const = 0;