Upgraded configuration methods.
Updated printer page for new config methods.
Printers: Add Another.
Manufacturers: Add Another.
Models: Add Another.
Consumables: Add Another.
Merge branch 'feature/save_and_new' into develop
Changed model name column to allow more than 20 characters.
Updated upgrade.php script to update the patch history table rather than relying on individual patch files.
Updated javascript libraries, remove Boxy dialog, added Magnific Popup dialog.
Consumables: Added total consumable quantity.
Consumables: show printer count, link to filtered printers page.
Consumables: Printer count
Added version number to core.
Tidy up.
Added feature: chargeback.
Added feature: consumable types.
Updated patch SQL file to account for an additional consumable type.
Documentation update for 1.4.0 release.