removed the trailing slash from the "production" url
prevent classification to have name "catalogue" and "all"
Revert "preparing ability to pass the classification in the url"

This reverts commit 49cd403a1145f454a5733920a53f88a5b0bd05a1.

Conflicts:
	ModelCatalogueCorePlugin/grails-app/domain/org/modelcatalogue/core/Classification.groovy
Revert "preparing ability to pass the classification in the url"

This reverts commit 49cd403a1145f454a5733920a53f88a5b0bd05a1.

Conflicts:
	ModelCatalogueCorePlugin/grails-app/domain/org/modelcatalogue/core/Classification.groovy
creating data elements on the fly.  #314
optimalized imports
create elements on fly. fixes #314
create elements on fly. fixes #315
being consistent with classifications