NEW FEATURES

Improve usability of the Metadata editor, integrate in the frontend for users having role admin
Add rotation features to ImageConverter interface, and detect Exif metadata using identify -format '%[EXIF:Orientation]' Rotate scaled image *only* if original dimensions do not match orientation.
Take code from ThumbnailImageResource to implement Java2DConverter
VideoConverter: convert videos to Flash using ffmpeg and display them using flvplayer
Users management: creating new account moderated by the administrator; provide default implementation with htaccess-based authentication

TASKS

Use the new tree from core and remove dep to wicket-extensions
Setup instructions (override PickWickApplication? Provide properties-based settings?)
Styling of image page