hhvm still does not want to work (FriendsOfSymfony#349)

don't care enough to fix it, lets not claim we support it anymore. if somebody wants to make it work again, please do so. probably a problem with running hhvm as web server on travis

Prepare release 2.0.0 (FriendsOfSymfony#329)

Merge pull request FriendsOfSymfony#273 from wickedOne/header-length

[cache tagging] http_resp_hdr_len check

Merge pull request FriendsOfSymfony#259 from FriendsOfSymfony/symfony…

…-3.0-1.4

Upgrade Symfony dependencies to 3.0

Merge pull request FriendsOfSymfony#205 from FriendsOfSymfony/documen…

…t-symfony-test-case

Document symfony test case

Merge pull request FriendsOfSymfony#190 from FriendsOfSymfony/tag-han…

…dler-hastags

Adding TagHandler::hasTags method

Merge pull request FriendsOfSymfony#177 from dunglas/fix_composer

Fix Guzzle requirement

Prepare 1.3.0

Merge pull request FriendsOfSymfony#155 from FriendsOfSymfony/remove-…

…duplicated-vcl

remove duplicated line from varnish 3 vcl

Merge pull request FriendsOfSymfony#134 from FriendsOfSymfony/fix-acc…

…ept-header-handling

fix accept header handling when client sends no accept header