Issue #123: wrong type defined for pane split. Also, bringing typecasts closer to standard.
Version bump to 3.0.2
Regenerate gemspec for version 3.0.2
Issue #124: Accomodate for Nokogiri Java implementation which is incapable of handling streams.
Merge branch 'master' of github.com:weshatheleopard/rubyXL into write_buffer