Add copyright to initial script

initial_setup.sh

 # This script installs the Debian image to the microSD card, and should
 # be run on your laptop/desktop with the microSD card plugged in.
 
+# License
+# =======
+#
+# Copyright (C) 2014 Bob Mottram <bob@robotics.uk.to>
+#
+# 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 of the License, 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, see <http://www.gnu.org/licenses/>.
+
+
 # typically /dev/sdb or /dev/sdc, depending upon how
 # many drives there are on your system
 MICROSD_DRIVE=$1