Adding capability to stream the output
Issue #121: enable streaming of XLSX (experimental!)
Issue #121: further improvements to streaming interface
Minor cleanup
Code cleanup
Removing vestigial methods, moving to relationship definition
Forgot custom properties...
Merge branch 'master' of github.com:weshatheleopard/rubyXL into write_buffer
Moving workbook relationships to the storage model
Removing vestigial code
Minor bug cleanup
Merge branch 'master' of github.com:weshatheleopard/rubyXL into write_buffer
Merge pull request #125 from weshatheleopard/write_buffer

Write buffer