* 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

* Migrate assertions to Webmozart

PSR-12 compliancy

Fix Psalm-issues in the modules-directory

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.

(being respectful with occurences that might change the behaviour, i.e. default database prefixes)

Move SimpleSAML_Utilities:: redirectTrustedURL() to SimpleSAML\Utils\HTTP:: redirectTrustedURL() and deprecate the former.

Solve a security issue with some modules (not validating URLs we are redirecting to) by moving the check to the SimpleSAML_Auth_State::loadState() method.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3336 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3333 44740490-163a-0410-bde0-09ae8108e29a

Followup on previous commits. Use redirectUntrustedURL() as a shortcut, and let everything else make use of redirectTrustedURL(). Move the responsibility to check the input out of the library, to the places where URLs are grabbed from input parameters.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3332 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3326 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2460 44740490-163a-0410-bde0-09ae8108e29a