Initial implementation of token refreshing
Refactor HttpOAuth2Connector.call() method
  - Always use the fake HttpServletResponse object to stream responses
to, and copy to the real resp only at the end of the method
  - Only re-try loading of tokens from the repo upon an authorization
failure if we skipped loading of tokens initially (i.e. if they were
already in the connector session)
  - Make use of getRefreshToken() shortcut method
Move distributionManagement section to parent pom
Remove duplicate parentId value, can be inherited from parent
Use YUI compressor during the build
Append project version label to the artifact file name
Merge branch 'master' of https://github.com/share-extras/share-oauth