Merge pull request #889 from dennishendriksen/master

Add feedback on activation/reset success/errors
Use url from Controller for Dataexplorerlink instead of hardcoded string
Merge pull request #891 from bartcharbon/master

Use url from Controller for Dataexplorerlink instead of hardcoded string
Merge branch 'master' of https://github.com/molgenis/molgenis
Error message improvements