Merge pull request #1830 from Mark-de-Haan/feature/bootstrap

Reverted some styling fixes. Fixed csv download modal
Merge branch 'master' of github.com:molgenis/molgenis into feature/bootstrap
Placed button html inside view-menumanager.ftl file
Added method to the MenuManagerController to handle logo update requests
Changed MolgenisUi interface to contain static String key values. Added a setHrefLogo method to update the logo in molgenisSettings. Updated all classes implementing the MolgenisUi interface.