1.0.0

• 8a84260 remove leftover debug code from test (David Buchmann)
• 267eb41 Fix docs build (David de Boer)
• 8d81ce3 Merge branch 'calumbrodie-patch-1' (David de Boer)
• f1749c7 Move custom header to include (David de Boer)
• 914337c Merge branch 'patch-1' of github.com:calumbrodie/FOSHttpCache into calumbrodie-patch-1 (David de Boer)
• 4836698 Add example of passing header to Cache Invalidator (Calum Brodie)
• 7dea240 Merge pull request #119 from usemarkup/master (David de Boer)
• 879db5e Add headers as optional argument to CacheInvalidator (Calum Brodie)
• 80f145c Merge pull request #118 from FriendsOfSymfony/purge-headers (David Buchmann)
• 271ce63 Add custom Guzzle client section to docs (David de Boer)
• e9f97d7 Add optional headers to purge call (fix #117) (David de Boer)