lib/wadl/http_method.rb (set_oauth_header): Switched to SafeYAML.
Hooking up Travis CI.
Rakefile: Require Ruby version >= 1.9.3.
lib/wadl/cli.rb (resource): Strip leading slash; better error message.
lib/wadl/response_format.rb: mime-types is a hard dependency.
lib/wadl.rb (require_oauth): New helper method.
Encapsulate HTTP request execution and import stripped down OpenURI patch.
Switch from OpenURI to Net::HTTP.