New rotation system (see forum thread).

Major changes:
  - when rotating, the top left corner of the rectangle stays in place.
  - ValueViewers get a dc that is pre-rotated/translated for them, i.e. (0,0) is the top-left of the viewer (with ValueViewer::getRotation).
  - moved 'angle' from individual Styles to the Style base class.
  - any rotation angle is now possible. angle is still an int for now.

This warrants a version bump

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@782 0fc631ac-6414-0410-93d0-97cfa31319b6

src/gui/image_slice_window.cpp

@@ -465,7 +465,7 @@ void ImageSliceSelector::draw(DC& dc) {
 		dc.DestroyClippingRegion();
 	}
 	// bitmap : unselected
-	dc.DrawBitmap(bitmap_no_sel, border, border);
+	dc.DrawBitmap(bitmap_no_sel, border, border, true);
 	// draw selected part ungreyed over it
 	{
 		wxMemoryDC mdc;