Reworked update script:
 * New class structure
 * Uses reference-id's
Created support for `old_title` key in package.json.
Fixed small bug in referencing scenario's.
Updated documentation after DB updates rework.
Fixed update bug for inserting new components.
Better.
* Removed error when clicking editable mode button in editable mode.
* Added :focusable selector to jQuery.
* Removed error when leaving an editable form with CKEditor.
* Added buttons to editable and preview forms.
* Added warning message when leaving page with unsaved changes.
Merge branch 'master' of git@github.com:Tuxion/mokuji.git into inline-editing
Only save when there are changes.