add copyright back into main file

bin/autojump

@@ -1,4 +1,23 @@
 #!/usr/bin/env python
+"""
+  Copyright © 2008-2012 Joel Schaerer
+  Copyright © 2012      William Ting
+
+  *  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 3, or (at your option)
+  any later version.
+
+  *  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  *  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+"""
+
 from __future__ import division, print_function
 
 import argparse