some cleanups:

- updated copyright notices
- added copyright notices that were missing
- changed python to python2
- added gpl-2/3 license texts
- removed THANKS.txt file as the wiki version is more up to date
- removed empty fpdb_db.py
- added GPL2 to debian license file

pyfpdb/DerivedStats.py

@@ -1,7 +1,7 @@
-#!/usr/bin/python
+#!/usr/bin/python2
 # -*- coding: utf-8 -*-
 
-#Copyright 2008 Carl Gherardi
+#Copyright 2008-2010 Carl Gherardi
 #This program is free software: you can redistribute it and/or modify
 #it under the terms of the GNU Affero General Public License as published by
 #the Free Software Foundation, version 3 of the License.
@@ -13,8 +13,7 @@
 #
 #You should have received a copy of the GNU Affero General Public License
 #along with this program. If not, see <http://www.gnu.org/licenses/>.
-#In the "official" distribution you can find the license in
-#agpl-3.0.txt in the docs folder of the package.
+#In the "official" distribution you can find the license in agpl-3.0.txt.
 
 #fpdb modules
 import Card