BackupCreateAction: remove broken backups

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@25958 ebf7c1c2-ba36-0410-9fe8-c592906822b4
fixes #43349

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@25959 ebf7c1c2-ba36-0410-9fe8-c592906822b4
Added isRemoteAPIEnabled() method to all dialogs. to define if the dialog should get broadcasted or not.

Readded Thread.interrupt to SingleDownloadController. We need it to interrupt dialogs and other blocking processes in case of a download stop




git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@25960 ebf7c1c2-ba36-0410-9fe8-c592906822b4
fixes #43282

git-svn-id: svn://svn.jdownloader.org/jdownloader/trunk@25961 ebf7c1c2-ba36-0410-9fe8-c592906822b4