Add support for --env-file

Merge pull request #73 from Kong/libxslt

fix(*): build libxslt as part of base image

Merge pull request #71 from Kong/xml-libs

docs(modes) add examples of hybrid mode usage to the manual (#67)

fix(script): use bash_source to identify the correct executable

chore(build): add XML libraries to build

fix(compose): failed to start container (#69)

test(redis) support redis cluster (#66)

Merge pull request #65 from ms2008/chore/shasum

Merge pull request #64 from liverpool8056/fix/YAML-boolean-enclosed-in-quotes

chore(*) calculate SHA using sha1sum

Fix incorrect anchor name in link

Merge pull request #63 from Kong/override-repo-url

Update docs