Correct mirroring of part in pronterface, strip comments from gcode before sending

gviz.py

@@ -97,7 +97,7 @@ class gviz(wx.Panel):
                 self.lines[target[2]]=[]
                 self.pens[target[2]]=[]
                 self.layers+=[target[2]]
-            self.lines[target[2]]+=[(self.lastpos[0],self.lastpos[1],target[0],target[1])]
+            self.lines[target[2]]+=[(self.lastpos[0],self.bedsize[1]-self.lastpos[1],target[0],self.bedsize[1]-target[1])]
             self.pens[target[2]]+=[self.mainpen]
             self.lastpos=target
             

printcore.py

@@ -199,7 +199,8 @@ class printcore():
             return
         if(self.printing and self.queueindex<len(self.mainqueue)):
             tline=self.mainqueue[self.queueindex]
-            if(not tline.startswith(';') and len(tline)>0):
+            tline=tline.split(";")[0]
+            if(len(tline)>0):
                 self._send(tline,self.lineno,True)
                 self.lineno+=1
             else: