Closes:  #1659

* 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 

Apparently, links to modules must have a "./" prefix.

This includes instructions on how to use SimpleSAMLphp with the PHP session backend while you are using it too in your application, also with a custom session handler.

Change documentation from recommending 2048 bit keys to using 3072 bit
keys.

Given that we're recommending people generate ten-year keys, 2048 bit
keys are probably a bit short. Almost all commercial certificate
authorities now recommend 4096 bit keys, and eduGAIN requires 3072 bit
keys for new federations.

This change aligns the SimpleSAMLphp documentation with the lower
eduGAIN requirement, since that still meets most standards bodies
recommendations for 2028 (ten years from now). cf
https://www.keylength.com/

It can now be used with \SimpleSAML\Auth\Simple, although the old name still works too.

Issue a notice when the option is used nonetheless.

Closes: #432

Change the extension of the documentation files from .txt to .md so that they can processed as markdown and displayed in github.

Add a method to SimpleSAMLphp_SessionHandlerPHP to restore a session existing previously to our own session. This can be used in SimpleSAML_Session to restore the PHP session status previous to calling our API, while also guaranteeing that our session is correctly saved. The documentation has been updated to reflect this and recommend how to deal with conflicting PHP sessions. This closes #244 and resolves #349.

* Remove 404 link to SSP news; this is covered on simplesamlphp.org now.
* Make screenshots link relative, so docs don't trigger insecure
  content warnings.
* Compress png images.

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

This is more than just cosmetics, as the rnd.feide.no links redirect
people to the SSP 1.5 documentation which is rather outdated.

Removing the simplesamlphp-ukaccess page in documentation. Improving docs on automated metadata management. Issue #608.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@3334 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2711 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2362 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2222 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2209 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2206 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2159 44740490-163a-0410-bde0-09ae8108e29a

Fixes issue 262.

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2147 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2007 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@2003 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1922 44740490-163a-0410-bde0-09ae8108e29a

git-svn-id: https://simplesamlphp.googlecode.com/svn/trunk@1850 44740490-163a-0410-bde0-09ae8108e29a