Merge branch 'master' into update
Merge branch 'master' into cursor
new properties of the Cursor
added client as an option to all functions related to work_on_packages
minor changes in update client
new features in show_active_packages
* split cursor.rules into cursor.rules and cursor_properties.rules
* limit as option in poly_db
Merge branch 'update' into cursor

Conflicts:
	apps/common/rules/cursor.rules
Merge branch 'master' into cursor
DatabaseCursor now has properties SORT_BY and SKIP
Merge branch 'cursor'