Added missing test for xml error formatter
Removed unused 'status' argument to format_message
Updated param name in comment to match code
Removed unused variable 'scope'
A bunch of tiny code cleanups
Corrected spelling error in README
Merge pull request #289 from evjan/master

Added missing test and cleaned some code
Merge pull request #290 from dpsk/master

Change to_xml method options in the default error_formatter
Clarified changelog.
do not create extenstion symbol if extension does not exist
added builder to gemfile (fixes "You don't have builder installed in your application. Please add it to your Gemfile and run bundle install" in specs)
added failing test for nested params in .route_params
Merge pull request #291 from flyerhzm/fix_memory_leak

do not create extenstion symbol if extension does not exist
moved builder dependency from gemfile to .gemspec as a runtime_dependency
Merge pull request #292 from marcusg/add-builder

added builder to gemfile
#178: Using content_type will reset all default content-types.
Consistent verbage around tweet/status.
Pass env into formatters to enable templating.
optional parameter to delete cookies

w/o such modification API servers ain't able to remove cookies set for different paths
Added a note on Rabl, Hypermedia and Roar.