Updating Symfony version from 2.4 to 2.5

The descriptions are still displaying the old version
Configuring composer.json to use the 2.5 version

Configuring composer.json to use the 2.5 version Rather than 2.4
Update version in Rework your Patch section
Update twig_reference.rst

Fix typo
minor #4019 Update twig_reference.rst (redstar504)

This PR was submitted for the 2.5 branch but it was merged into the 2.3 branch instead (closes #4019).

Discussion
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Update twig_reference.rst

Fix typo

Commits
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bd40720 Update twig_reference.rst
minor #4026 Updating Symfony version from 2.4 to 2.5 (danielsan)

This PR was merged into the 2.5 branch.

Discussion
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Updating Symfony version from 2.4 to 2.5

The descriptions are still displaying the old version

Commits
-------

81d962f Configuring composer.json to use the 2.5 version
2299df0 Updating Symfony version from 2.4 to 2.5
minor #4035 Update version in Rework your Patch section (yguedidi)

This PR was merged into the 2.3 branch.

Discussion
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Update version in Rework your Patch section

Commits
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7b2f9b4 Update version in Rework your Patch section
Merge branch '2.3' into 2.4

* 2.3:
  Update twig_reference.rst
  Update version in Rework your Patch section
Merge branch '2.4' into 2.5

* 2.4:
  Update twig_reference.rst
  Update version in Rework your Patch section
Merge branch '2.5'

* 2.5:
  Update twig_reference.rst
  Update version in Rework your Patch section
  Configuring composer.json to use the 2.5 version
  Updating Symfony version from 2.4 to 2.5