Add travis configuration
Split MetaWeblog::Post class from 'metaweblog/client'
MetaWeblog::Post#new allows to use hash
Refactor MetaWeblog::Post, define Post class instead of Struct
Add deployment configuration to .travis
Specify the version number as alpha if development branch
Modify .travis for deploying gem file for prerelease
Fix typo in .travis
Fix the version number
Fix the specification of metaweblog's version
Change the specification of gem version, '#{the latetst version}.pre#{build num}'
Bump up the version number to 0.2.0
Specify rspec options by .rspec
Construcotor accepts String keys of data.
Add pubDate attribute to Post class
Post#pub_date= accepts Time, DateTime and String object
Specify Accept-Encoding as identity

 According to the bug report
   https://bugs.ruby-lang.org/issues/8182
 MetaWeblog::Client fails to get response when the server compresses
 responses.
 As workaround, the client specifies Accept-Encoding as idnetity.
Disble deployment feature
Merge branch 'development'
Update Changelog