Extract test assertions
Extract Varnish process
Move reusable test classes to src

Don't skip tests if Nginx is unavailable

Refactor tests

* Refactor tests so they use the new TestCases
* Add PHPDocs
* Update docs
Run Nginx through ProcessBuilder

Fix Nginx command-line syntax

Fix Nginx port

Rename getNginx() to getProxyClient()

Fix tests on Nginx

rm -rf * didn’t work correctly because of how ProcessBuilder escapes arguments.

Clean up

Add FOS headers
Merge pull request #103 from FriendsOfSymfony/extract-test-functionality

Extract test functionality