Change font family

If not the same one, should be a close one
First try with doctrine figures
Fixing bad title underline
Fix translation
Another doctrine one
First security one
Add mising parameter
Translate doctrine 3
Merge pull request #164 from martinqt/translate_images

Change font family
getReference return a managed proxy

See : https://github.com/doctrine/data-fixtures/pull/81#issuecomment-9658892
Fix translation
Translate role authentication process
Fix translation

Shame on me
Translate serializer
fixing small typo
Translate another security image
Updating master from symfony-docs (first part)
Merging upstream from symfony-docs-fr
Updating from symfony-docs (second part)
Merge pull request #174 from gregquat/master

Updating from Symfony-docs (second part)