Updated package layout
Renamed FeedMachine as FeedDB in core module
Added images for gui
Updated gui
Changed db to database
Added copyright notice
Fixed bugs in core module
Updated QT Gui

The widget now can open and close databases. It can add
and remove feeds from databases. It can refresh feeds. 
Actions will now be enabled and disabled depending on
availability.

- added actions
- updated actions
- feedsTableWidget
- signals
- updateUI
- feedAdd
- feedRemove
Fixed minor bugs in core module
updated feedRemove in qtgui module
Fixed update_all_feeds in core module
Changed work plugin to script
Changed words

- script to plugin
- script name
Added Script class to the core module.
Updated qtgui module

- added databaseSave.png
- added databaseSettings.png
- added databaseSaveAction
    - added action to toolbar
    - added action to menu
    - update code include action
- updated script tableWidget and associated code