Although strictly 'less correct'. When manually converting
metadata, this is not such a useful note, and frequently gives
rise to trouble when the output is copied to somewhere static.

Previously, would show inappropriate precision, like "0.0598134 hours ago"
or "1490532.4129 hours from now" depending on the expiration date.

* Configurable ProviderName

Co-authored-by: Tim van Dijen <tvdijen@gmail.com>

Closes #1346

Start testing admin-module

Convert to our wrapper class for assertions

It's easiest prevented by adding a linebreak after the <code> tag. This is not
ideal but a quick fix.

Fixes 336b7abe which changed the label from
'Login' to a single-use 'Log in' whilste the translations only have 'Login'.

Fix several bugs in saml:NameIDAttribute authproc filter & raise coverage

fix_createLogoutTable_method

These pages are now handled by the admin module. Add redirects
to the new locations.

This makes it possible for existing deployments to have this working with SSO. Otherwise, the user would end up authenticated with the "default" auth source when accessing the web interface, and "another" auth source when logging in via SAML.

Squashed commits:
[090679e6b] authsources must be an array
[1778d0c21] only set the AuthSource if it also exists, but always remove the config
variable.
[c09669e32] add the possibility to specify one AuthSource to be shown and the rest
are used via multiauth:MultiAuth