Added warning message about malfunctioning Conventional/Climb until t…

…his gets fixed. See vlachoudis#881

CNC.py

@@ -3504,6 +3504,11 @@ def cutDirection(self, items, direction=1):
 		#	Climb = CCW for inside profiles and pockets, CW for outside profiles
 		#	In such case it's OK to set operation to "conventional/climb", in other cases
 		#	error should be displayed and user should use CW/CCW in other cases this gets very confusing!
+
+		msg = None
+		if abs(direction) > 1:
+			msg = "Beware that Conventional/Climb feature currently only works correctly for outside shapes!\n"
+			msg += "If not sure, please use CW/CCW until this gets fixed."
 		if direction==2: direction=1
 		if direction==-2: direction=-1
 
@@ -3524,6 +3529,8 @@ def cutDirection(self, items, direction=1):
 				undoinfo.append(self.setBlockLinesUndo(bid, block))
 		self.addUndo(undoinfo)
 
+		return msg
+
 	#----------------------------------------------------------------------
 	# Return information for a block
 	# return XXX

bCNC.py

@@ -1676,7 +1676,7 @@ def executeOnSelection(self, cmd, blocksonly, *args):
 		elif cmd == "CLOSE":
 			sel = self.gcode.close(items)
 		elif cmd == "DIRECTION":
-			self.gcode.cutDirection(items, *args)
+			sel = self.gcode.cutDirection(items, *args)
 		elif cmd == "DRILL":
 			sel = self.gcode.drill(items, *args)
 		elif cmd == "ORDER":