Added GPL and copyright information to color themes and holiday files

doc/rc/light-256.theme

@@ -1,5 +1,31 @@
+###############################################################################
 # Sample task 1.9 (or later) light 256-color theme
-
+#
+# task - a command line task list manager.
+#
+# Copyright 2006 - 2010, Paul Beckingham.
+# All rights reserved.
+#
+# 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 2 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, write to the
+#
+#     Free Software Foundation, Inc.,
+#     51 Franklin Street, Fifth Floor,
+#     Boston, MA
+#     02110-1301
+#     USA
+#
+################################################################################
 color=on
 color.header=color4
 color.footnote=color4