branch alias for develop.
listener to add PHP status and headers to symfony response.
code standard.
fix path to autoload.
require php 5.4.0 for header tests.
remove hhvm.
Merge branch 'master' into develop
handle null matcher.
Merge branch 'master' into develop
do not capture output buffer on exceptions.
switch to PSR-4.
fix composer.json.
Merge branch 'release/1.1.0'