Finalize static custom search option
Minor issues:
- Extended search with error leading up
- Tags loading without index results in error
- Coloring and styling of login/logout dialogs
Features:
- Static branding
(from redmine: issue id 1104, created on 2018-07-31tgradl, closed on 2018-08-06)
- Relations:
- relates #970
- relates #1002