Fixes #19047 - unify date formats

This introduces two new helpers for printing date in absolute and
relative format. Helper for absolute accepts also a parameter to choose
between long and short variant. The long one includes the year. The date
also has a title so you see the other format after hovering mouse...

Fixes #20897 - change description for 'default' to help tooltip

Fixes #20454 - change page by typing page number

Fixes #20800 - Comply with Patternfly login page recommendations

• Move alerts inline above form
• Make submit button not show a "loading" state

Fixes #20660 - improve proxy features list

Fixes #20678 - Improve provisioning templates history

• Make glyphicons the default text color
• Add "No comment provided" when it is empty
• Change link actions to buttons
• Fix issue with empty tab when skipping
  non audit_templates

Fixes #20672 - add button for autosign entry

Fixes #20516 - GET hosts API displays owner_name attribute

fixes #20822 - vm: show link to associated host

Fixes #20858 - pxe_loader in GET api/v2/hostgroups/:id