Comment 3 for bug 519836

Hi,

I put together a quick patch for this.

1. I have used the "line-mark-activated" signal of GtkSourceView to toggle the breakpoint.
2. I have also modified the gui_editor_toggle_mark() function to accept a line number parameter.
3. Due to the above change I had to modify the bridge.c file where the above function is called.

--Debjit