New and improved:
* Data CD, continue multisession CDs:
- Show content of previous sessions in the file/folder view
- Import is possible if the options 'multisession' and 'continue
CD' are selected and the project is empty.
- Warnings that files and folders from previous sessions cannot
be moved or renamed.
- Possibility to 'delete' files or folders from an existing session
- Limitations:
o Empty folders from previous sessions cannot be removed
* keyboard shortcuts:
Alt-O: Add files (Data-, Audio-, X-, Video-CD)
Alt-I: Add folders (Data-, XCD)
Alt-V: Add files as Form2 files (XCD);
Alt-Entf: Delete All (Data-, XCD)
Alt-Up: Move track up (Audio-, Video-CD)
Alt-Down: Move track down (Audio-, Video-CD)
* new commandline options /img und /dvd
* Bugfixes
