- NLA Window:

Added support for Panels, and converted old NKEY menu here.
Also enabled zooming in further, as for Action Window.
(note: this editor can use some work, this action stuff is underdeveloped
and mysterious!)

- UI code
Brought back fix that sets for each Panel a GL matrix for UI code thats
coming after it. This makes system more flexible, and prevents conflicts
with other uiBlocks in a window (like ipo, action).
This will give a tinsy bit more load for moving mouse around... please
report back if this causes troubles.

source/blender/src/interface.c

@@ -2523,8 +2523,10 @@ static int ui_do_block(uiBlock *block, uiEvent *uevent)
 	// added this for panels in windows with buttons... 
 	// maybe speed optimize should require test
 	if((block->flag & UI_BLOCK_LOOP)==0) {
-		//bwin_load_winmatrix(block->win, block->winmat);
-		//glLoadIdentity();
+		glMatrixMode(GL_PROJECTION);
+		bwin_load_winmatrix(block->win, block->winmat);
+		glMatrixMode(GL_MODELVIEW);
+		glLoadIdentity();
 	}
 
 	Mat4CpyMat4(UIwinmat, block->winmat);