Added error handling to micron parser mouse event translator. Fixes #32.

nomadnet/ui/textui/MicronParser.py

@@ -751,6 +751,7 @@ class LinkableText(urwid.Text):
             return x, y
 
     def mouse_event(self, size, event, button, x, y, focus):
+        try:
             if button != 1 or not is_mouse_press(event):
                 return False
             else:
@@ -789,3 +790,6 @@ class LinkableText(urwid.Text):
                 self._emit("change")
                 
                 return True
+            
+        except Exception as e:
+            return False