upgrade to symfony 2.3 and integrate submit type
merged branch alexandresalome/feat-symfony-2.3 (PR #49)

This PR was merged into the master branch.

Discussion
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upgrade to symfony 2.3 and integrate submit type

Commits
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fca1493 upgrade to symfony 2.3 and integrate submit type
Fixed previous merge + fix #44
add cache:clear command
Merge branch 'cache-clear-command' closed #47
Fixed previous merge
Updated some dependencies
Use symfony/debug
Added SensioLabsInsight badge on README.md
Require stable version of silex/web-profiler
Require stable version of mheap/silex-assetic
Tests should pass with php 5.5
adding more test for form and page cache mechanism
test the logger
Merge pull request #52 from Trismegiste/master

adding more test for form and page cache mechanism
Fixed form_div_layout when embed form is not valid.
Migration to silex 1.1
minor #53 Migration to silex 1.1 (Trismegiste)

This PR was squashed before being merged into the master branch (closes #53).

Discussion
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Migration to silex 1.1

Hello,

I've migrated many components used in this edition, including Silex to 1.1 release.

PHPUnit are ok.

Hope this helps.

Commits
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fffa4e6 Migration to silex 1.1
bump dependencies
Merge branch 'upgrade-to-ske-1.3.0'