set content_type depending on service.formats and accept header
store content type in env["wd.format"] instead of params[:format]
store media type in env["wd.media_type"]
if Accept header is nil, select the first defined service format as wd.format and set wd.media_type to */*
add rack-accept dependency to gemspec
update Gemfile:
- add https to source uri scheme
- lock miinitest at ~> 4.7.4
- allow newer versions of backports and rack-test
- rename platform to platforms
lock gemspec minitest version at ~> 4.7.4
Merge pull request #30 from kamui/content-type

Set content type based on accept header