Fixed the retrieval of the autoloader for tests

require_once returns a boolean rather than the return value of the file when it skips the inclusion because it was already done, thus breaking the retrieval. The Composer autoload.php file is specifically designed to allow requiring it multiple times safely.
Allow cache headers overwrite
cleanup cache header overwrite options
Merge pull request #151 from FriendsOfSymfony/gv-allow-cache-overwrite

Allow override of request cache headers
hhvm broke their xml support. ignore it until they can fix it
Merge pull request #153 from FriendsOfSymfony/hhvm-broke-xml

hhvm broke their xml support. ignore it until they can fix it
Merge remote-tracking branch 'origin/1.0'
hhvm broke their xml support. ignore it until they can fix it
Implemented Symfony reverse proxy support for user context hash.

Ref #26

Added tests for Symfony RP
Updated Changelog
Merge pull request #152 from lolautruche/contextHashSymfonyReverseProxy

Implemented Symfony reverse proxy support for user context hash.
revert #153 as hhvm setup on travis is fixed
Merge pull request #157 from FriendsOfSymfony/hhvm

revert #153 as hhvm setup on travis is fixed
do not enforce sensio extra bundle with default configuration
Fix typo
Merge pull request #159 from FriendsOfSymfony/tag-annotations

do not enforce sensio extra bundle with default configuration
Fix doc reference
with master being symfony 3.0 we need to be more specific
Merge pull request #162 from FriendsOfSymfony/fix-symfony-dep

with master being symfony 3.0 we need to be more specific
Fix route config