Defined stable version point of Doctrine.
[Routing] make xml loader more tolerant

schemes and methods may also be delimited by whitespace, comma or pipe.
this eases migration as now schemes="GET|POST" also works
[Routing] unify and fix the loader tests
Update RouteCompiler.php

Fixes INF problem on solaris.
merged branch Tobion/scheme-method-def-tolerance (PR #7268)

This PR was merged into the 2.2 branch.

Commits
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54c333d [Routing] unify and fix the loader tests
41ad9d8 [Routing] make xml loader more tolerant

Discussion
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[Routing] make xml loader more tolerant

schemes and methods may also be delimited by whitespace, comma or pipe.
Fixes https://github.com/symfony/symfony/pull/6049#issuecomment-11315698
this eases migration as now `methods="GET|POST"` also works
the second commit unifies the tests and fixes some strange assertions that were useless

| Q             | A
| ------------- | ---
| Bug fix?      | [yes]
| New feature?  | [yes but not really]
| BC breaks?    | [no]
| Deprecations? | [no]
| Tests pass?   | [yes]
| License       | MIT
Merge branch '2.1' into 2.2

* 2.1:
  [FrameworkBundle] Fix code status in dockblock
  Fixed test to use Reflection
  [Finder] fixed a potential issue on Solaris where INF value is wrong (refs #7269)
  Update RouteCompiler.php
  [FrameworkBundle] avoids cache:clear to break if new/old folders already exist
  [HttpKernel] Fixed possible profiler token collision (closes #7272, closes #7171)
  [ClassLoader] tweaked test
  [ClassLoader] made DebugClassLoader idempotent
  [DomCrawler] Fix relative path handling in links

Conflicts:
	src/Symfony/Component/DomCrawler/Link.php
	src/Symfony/Component/Finder/Iterator/DepthRangeFilterIterator.php
	src/Symfony/Component/Routing/RouteCompiler.php
[Routing] fix url generation for optional parameter having a null value
Merge branch '2.2'

* 2.2: (70 commits)
  change wrapped exception message to be more usefull
  updated VERSION for 2.0.23
  update CONTRIBUTORS for 2.0.23
  updated CHANGELOG for 2.0.23
  [Form] fixed failing test
  [DomCrawler] added support for query string with slash
  Fixed invalid file path for hiddeninput.exe on Windows.
  fix xsd definition for strict-requirements
  [WebProfilerBundle] Fixed the toolbar styles to apply them in IE8
  [ClassLoader] fixed heredocs handling
  fixed handling of heredocs
  Add a public modifier to an interface method
  removing xdebug extension
  [HttpRequest] fixes Request::getLanguages() bug
  [HttpCache] added a test (cached content should be kept after purging)
  [DoctrineBridge] Fixed non-utf-8 recognition
  [Security] fixed HttpUtils class tests
  replaced new occurences of 'Request::create()' with '::create()'
  changed sub-requests creation to '::create()'
  fixed merge issue
  ...

Conflicts:
	src/Symfony/Bundle/FrameworkBundle/Command/TranslationUpdateCommand.php
	src/Symfony/Bundle/WebProfilerBundle/Resources/views/Profiler/toolbar.html.twig
	src/Symfony/Component/DomCrawler/Link.php
	src/Symfony/Component/Translation/Translator.php