* Migrate email utils to non-static

* Migrate http utils to non-static

* Migrate net utils to non-static

* Migrate random utils to non-static

* Migrate system utils to non-static

* Migrate time utils to non-static

* Migrate xml utils to non-static

* Upgrade notes

* Update test-framework

* Fix tests

Convert to our wrapper class for assertions

* Remove deprecated classes

* Remove support for certificate fingerprints

* Remove many deprecated methods and pieces of code

* Remove SAML1.1/Shib1.3 support

* Remove many superfluous annotations

* Update unit test to work with new PHPunit

Closes #1268 
Closes #1020 
Closes #431 
Closes #167 
Closes #151 

* Migrate assertions to Webmozart

* Raise minimum PHP version to 7.0

* Remove tests pre-PHP 7.2

* Upgrade dev dependencies

* Ignore tests for deprecated class

* Add typehints; not touching public API

* Remove none-array replacements-param; old behaviour from pre-1.4 release

* Psalm fixes

* Add upgrade notes

* PSR-12

PSR-12 compliancy

*    Updated the phpDoc comments to match the code
*    Added return statements
*    Added return values

\SimpleSAML\Error\NoPassive is deprecated and all modules now raise \SimpleSAML\Module\saml\Error\NoPassive.
During this period of deprecation, we need to catch both flavours.

This fixes NoPassive-errors when using consentAdmin

\SimpleSAML\Error\NoPassive is deprecated and all modules now raise \SimpleSAML\Module\saml\Error\NoPassive.
During this period of deprecation, we need to catch both flavours.

This fixes NoPassive-errors when using consentAdmin

This reverts commit ef36c5fd.

All a bit too involved right before a planned release.

Also, convert to PSR-2 where that was still lacking in these files.

Working toward some of the requested tasks in
https://github.com/simplesamlphp/simplesamlphp/wiki/List-of-tasks

bugfix: When obtaining a UserID for the state array prior to running authproc filters, if the source attribute had multiple values a warning was logged but the UserID was still recorded.