cache tag invalidation needs to escape for regex
improve vcl comment
Merge pull request #95 from FriendsOfSymfony/fix-tag-escaping

cache tag invalidation needs to escape for regex
Run Sphinx in strict mode on Travis

Sphinx warnings should make the doc build fail on Travis.
Merge pull request #99 from FriendsOfSymfony/strict_sphinx

Run Sphinx in strict mode on Travis
Enable CURLOPT_FORBID_REUSE (fix #97)

The cURL connection re-use caused response headers for different requests to be
confused when testing against Varnish 4.0.1 (on PHP 5.5). Varnish 3.0.2 (and
possibly 4.0.0) still work fine with re-use.
Merge pull request #98 from FriendsOfSymfony/fix-varnish-4.0.1

Fix purge syntax for Varnish 4.0.1
provide request information in exception mesage
Note that base URL should include port, too

This is needed when websites are accessed on a port other than 80. Though this precisely resembles
suffixing port numbers on Varnish IP addresses, making it explicit will prevent confusion.
Merge pull request #100 from FriendsOfSymfony/base-url-port

Note that base URL should include port
Add documentation references
Merge pull request #96 from FriendsOfSymfony/debug-info-on-error

debug information in exceptions
Fix 404s on HHVM
Simplify HHVM Apache vhost
Merge pull request #102 from FriendsOfSymfony/fix-hhvm-404

Fix 404s on HHVM
add some more tests
Merge pull request #104 from FriendsOfSymfony/more-tests

add some more tests
Fix #106

* Fix doc links to source code by using extlinks
Fix broken sentence
Make install-nginx.sh Debian-compatible

Try to remove libssl0.9.8 from packages, which is unavailable on Debian 7.
 With this package removed, the install-script.sh works fully on Debian.