Autoloader should not throw exception because PHP will continue to call other registered autoloaders.

Change 'require' to non-fatal '@include' in the event no file is generated.  Let PHP handle the undefined class, natively.
use require instead of include
[HttpKernel] added some constant for better forward compatibility
[Locale] Updated exception messages
[Form] Added right HTML types to Datetime/Date/Time types if single_text is true
[Form] Added tests
[TwigBridge] Switched to composer
[Form] fixed tests
[CssSelector] removed an unneeded condition (taken care of afterward in the code) (closes #4269)
[WDT] Ajusted the color of the PHP logo

Since the redesign of the Web-Debug-Toolbar, a new PHP icon has been
set, but its color was a bit darker (#000000) than the other icons in
the toolbar (#302e32 for the Symfony2 logo). This commit aims to ajust
the background color of the PHP logo to keep a certain homogeneity.
[CssSelector] ignored an optional whitespace after a combinator
[CssSelector] updated upstream code repository
[FrameworkBundle] minor fix in TranslationUpdateCommand <info> was not properly closed.
merged branch MattKetmo/php-icon (PR #4270)

Commits
-------

9f772c7 [WDT] Ajusted the color of the PHP logo

Discussion
----------

[WebProfilerBundle] Ajusted the color of the PHP logo

Since the redesign of the Web-Debug-Toolbar in #3850, a new PHP icon has been added, but its color is a bit darker (`#000000`) than the other icons in the toolbar (`#302e32` for the Symfony2 logo). @stloyd also noticed it [here](https://github.com/symfony/symfony/pull/3850#issuecomment-5137859).

This (minor) PR aims to ajust the background color of the PHP logo to keep a certain homogeneity.

The color change can be see there (before/after) : http://twitpic.com/9kbs4p

---------------------------------------------------------------------------

by travisbot at 2012-05-12T21:03:31Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1316131) (merged 9f772c78 into e1934527).
merged branch sstok/patch-2 (PR #4272)

Commits
-------

498b814 [FrameworkBundle] minor fix in TranslationUpdateCommand <info> was not properly closed.

Discussion
----------

[FrameworkBundle] TranslationUpdateCommand <info> was not properly closed.

---------------------------------------------------------------------------

by travisbot at 2012-05-13T13:43:06Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1319869) (merged 498b8140 into e1934527).

---------------------------------------------------------------------------

by fabpot at 2012-05-13T17:06:25Z

Can you reopen a PR on the 2.0 branch as this is a bug fix? Thanks.

---------------------------------------------------------------------------

by stof at 2012-05-13T18:09:39Z

@fabpot this command is a 2.1 feature (even if it was added 6 month ago and so seems already old). There is nothing to fix in 2.0
[Serializer] Fix CustomNormalizer supportsDenormalization interface check.
[Routing] fixed spelling errors in phpdoc
merged branch sstok/spelling-fix (PR #4275)

Commits
-------

bbf7183 [Routing] fixed spelling errors in phpdoc

Discussion
----------

[Routing] fixed spelling errors in phpdoc

Bug fix: yes
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: yes

---------------------------------------------------------------------------

by travisbot at 2012-05-14T11:17:26Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1326017) (merged bbf7183c into 8d7f7f5b).
merged branch hason/localeexceptions (PR #4250)

Commits
-------

6438c80 [Locale] Updated exception messages

Discussion
----------

[Locale] Updated exception messages

---------------------------------------------------------------------------

by travisbot at 2012-05-10T15:12:46Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1296098) (merged 60eabc7c into fae4523f).

---------------------------------------------------------------------------

by travisbot at 2012-05-11T21:27:29Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1309320) (merged 6438c808 into dd0da03c).

---------------------------------------------------------------------------

by hason at 2012-05-14T09:23:26Z

@fabpot corrected
merged branch duplabe/customnormalizer-fix (PR #4273)

Commits
-------

e647eaa [Serializer] Fix CustomNormalizer supportsDenormalization interface check.

Discussion
----------

[Serializer] Fix CustomNormalizer supportsDenormalization interface check.

Bug fix: yes
Feature addition: no
Backwards compatibility break: no
Symfony2 tests pass: yes
Fixes the following tickets: -
Todo: -
License of the code: MIT
Documentation PR: -

Fixes the previous PR: https://github.com/symfony/symfony/pull/4257

---------------------------------------------------------------------------

by travisbot at 2012-05-13T20:57:00Z

This pull request [passes](http://travis-ci.org/symfony/symfony/builds/1322002) (merged e647eaa6 into 459942b4).