added a caution about how to configure security for php-cgi/Apache
updated CHANGELOG
prepared the 1.2.1 release
bumped version to 1.2.2-DEV
Minor optimization in ValidatorServiceProvider

ReflectionClass is only needed if a translator is present. Moving usage of it inside the related conditional means one less object instantiation.
minor #978 Minor optimization in ValidatorServiceProvider (elazar)

This PR was merged into the 1.2 branch.

Discussion
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Minor optimization in ValidatorServiceProvider

`ReflectionClass` is only needed if a translator is present. Moving usage of it inside the related conditional means one less object instantiation.

Commits
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1aed8cd Minor optimization in ValidatorServiceProvider
Merge branch '1.2'

* 1.2:
  Minor optimization in ValidatorServiceProvider
  bumped version to 1.2.2-DEV
  prepared the 1.2.1 release
  updated CHANGELOG
  added a caution about how to configure security for php-cgi/Apache

Conflicts:
	doc/changelog.rst
	doc/phar.rst
	src/Silex/Application.php
	src/Silex/Provider/ValidatorServiceProvider.php