Process split button items AND the item itself.

git-svn-id: svn://svn.code.sf.net/p/openmediavault/code@1342 3c3d7b80-5828-415e-9f61-280b98178fff
Code cleanup.

git-svn-id: svn://svn.code.sf.net/p/openmediavault/code@1343 3c3d7b80-5828-415e-9f61-280b98178fff
Fix bug and update documentation.

git-svn-id: svn://svn.code.sf.net/p/openmediavault/code@1344 3c3d7b80-5828-415e-9f61-280b98178fff
Improve d-i package. Disable CD image in /etc/apt/sources.list.

git-svn-id: svn://svn.code.sf.net/p/openmediavault/code@1345 3c3d7b80-5828-415e-9f61-280b98178fff
Update icons.

git-svn-id: svn://svn.code.sf.net/p/openmediavault/code@1346 3c3d7b80-5828-415e-9f61-280b98178fff