Updates GUI for asset view.
Consistent confirm and feedback on all move and copy-actions. Also work on asset reference information and a better asset view. Some debug removed and Timer output allways in warning log.
Merge pull request #56 from johandahlgren/master

New more flexible Asset-GUI
Improvements to change component
Merge branch 'master' of github.com:bogeblad/infoglue
Worked on better control on asset deletion and asset usage
New feature: Move asset between contents.
Reference control on assets and visual view of which contents are using an asset.
Updated asset UI
Fixed some bugs in new feature
Adds an upload button to the browse view...

...for the image picker in the WYSIWYG. The button is only visible when
there already exist a content version in the current language (plus master
language fallback).