fix alter table query
Merge pull request #378 from fkooman/develop

fix alter table query
Merge branch 'develop' of https://github.com/janus-ssp/janus into develop
Merge branch 'develop' into surfnet-version
Enabled CSRF check that was disabled by accident earlier
Added support to disable enitity id validation, this can be done when not every entityid is an url
Merge branch 'develop' into surfnet-version
Added support to disable entityid validation to dashboard
Merge branch 'develop' into surfnet-version