Merge pull request #1 from mogorman/fix_empty_application_type

Fix empty application type

format

bug fix when nil data is sent in via send_file in phoenix and support

for filtering of compression based on content type.

1.0.4 Fixup unit tests

1.0.3 improved testing framework

readme ordering issue

1.0.1: wider cachex support

1.0.0: release verified all is working and ready to go out

working refactor. need to write tests and some docs. but big changes

are, being able to config via application.put_env, enable/disable
flag, converted compressors to a behavior to support more compressors
in the future easily, made cache start as part of the application.

0.1.3: fixes issue with crashes on some payloads