Removed trailing whitespaces
Removed whitespaces
Added changelog
Changelog removed from README
Removed white spaces
Merge pull request #151 from ryakh/master

Added CHANGELOG and removed it form README
Fix typo: 'childen' => 'children'.
Fix some more typos.
Use https instead of http when connecting to rubygems.org.
Added arrange_serializable
Merge remote-tracking branch 'upstream/master'