Fixing problems with image handling.
Improved image handling (fixes #2351); Passwords can now be changed by "admin" user (CAUTION: this is done by checking if the currently logged in user is the user named "admin", this has to change once rights are implemented correctly)
Renaming MediaMetaData to MediaInfo
Print Publisher runs outside of conversations; Fixes a bug with empty selections in SelectFeatureTreeWizard; Added a warn method that accepts throwables; ImageElement does not show error dialogs but logs errors silently;
had to rename the packages to make them compliant with buckminster