[BUGFIX] Resolve dependencies for local extensions

Add the dependency resolving when installing local
extensions with the extension manager.

Cleanup the download controller arguments on the go.

Fixes: #41273
Releases: 6.0

Change-Id: I10876f09bf4bed7b33d803a80a3d89fb583d4c7e
Reviewed-on: http://review.typo3.org/15873
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel