HIGH

 * merge mvo's proxy patch

NORMAL

 * client, gtkwidgets.AptProgressDialog: Implement the wait argument on run

 * client: Review documentation and add reply|error_handler notes

 * client/core/worker: Allow to install a list of local package files

 * client: Set the http proxy automattically

 * core: Allow to call AddVendorKey and RemoveVendorKey directly on the
         daemon interface instead of inside a transaction

 * core/worker: Reduce number of transaction roles handled internally.
                CommitPackages, UpgradeSystem and UpdateCache should be
		sufficient

 * core: Add packages attribute to the transaction interface which provides
         an array of all modified packages of the transaction

 * console: Add dependency calculation and confirmation