[INTERNAL] moved ZIP logic to a new class

The remaining logic of the FileZipper class is not useable for normal
compression of files. Moved the whole logic to a new CreateArchiveTask
class which is part of the negotiation package. Removed all ZipListener
interfaces and implementations as they are no longer needed.

Change-Id: Ie255eabf4034bcb73be4eb42a286e281bc8b2da7
Reviewed-on: http://saros-build.imp.fu-berlin.de/gerrit/1664
Tested-by: Jenkins CI
Reviewed-by: Stefan Rossbach <srossbach@arcor.de>