Bump to version 0.2.2
Fix comment
rename file
fix spec. Add String#encoding method for 1.8.x
Remove jruby setting in .travis.yml
fix typo in method name
exclude external files from coverage target
Merge pull request #4 from toshiwo/fix_typo

fix typo in method name
Merge pull request #5 from toshiwo/exclude_external_files_from_coverage_target

exclude external files from coverage target
added a test case for ShopAndSiteAPI#trade_card
Added GMO::JSON to blur the differences between the different MultiJson versions
added matrix
modify changelog
Bump to version 0.2.3