[BUGFIX] Fix dependency handling of EM

Through calculation of dependencies the dependency
utility swapped lowest and highest constraint.

Fix that and also make the dialogue work again
when installing an extension with dependencies.

Fixes: #42245
Releases: 6.0

Change-Id: I1701b966bbb0c9768992e5e8a9a6a88ae4917ce6
Reviewed-on: http://review.typo3.org/15862
Reviewed-by: Jigal van Hemert
Tested-by: Jigal van Hemert
Reviewed-by: Helmut Hummel
Tested-by: Helmut Hummel