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