Fix typo dans filesystem.rst
Fix typo
Update external_parameters.rst

fixed php missing closing parenthese in php loadFromExtension code-block
Fix typo in use statement

This is already fixed in english version
Update propel.rst

Correction du lien vers le cookbook Propel
Update usage.rst

minor typo
Update remove.rst
Update service_container.rst

Suppression texte de la version anglaise
Update collection.rst

fix typo
fix typo
Update http_fundamentals.rst

fix typo
Update installation.rst

Problem with chmod +a section (use setfacl instead of chmod +a)
Merge pull request #576 from ousmaneNdiaye/2.5

Fix typo
Merge pull request #578 from mediavince/patch-1

Update external_parameters.rst
Merge pull request #579 from kipit/patch-1

Fix typo in use statement
Merge pull request #580 from romainjanvier/patch-1

Update propel.rst
Merge pull request #581 from fibo99/patch-2

Update remove.rst
Merge pull request #583 from romainjanvier/patch-2

Update service_container.rst
Merge pull request #585 from NAYZO/patch-6

fix typo
update part about PHPunit install