merged branch stof/patch-3 (PR #573)

This PR was merged into the 2.3 branch.

Discussion
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Updated the profiler configuration for the 2.3 changes

FrameworkBundle 2.3 changed the way to configure the profiler, and keeping the old configuration does not allow using ``$client->enableProfiler()`` in tests.

This is related to symfony/symfony#8541

Commits
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16adebe Updated the profiler configuration for the 2.3 changes

Author: fabpot

app/config/config_test.yml

@@ -6,7 +6,7 @@ framework:
     session:
         storage_id: session.storage.mock_file
     profiler:
-        enabled: false
+        collect: false
 
 web_profiler:
     toolbar: false