* Improve code.
* Fix bug when listing packages that are to be upgraded. The RPC called Apt::getUpgraded has been renamed to Apt::enumerateUpgraded.

git-svn-id: http://svn.code.sf.net/p/openmediavault/code/trunk@1242 3c3d7b80-5828-415e-9f61-280b98178fff