Issue #77: Chart sheet support
Merge branch 'master' of github.com:weshatheleopard/rubyXL into chartsheet_support
Further additions to the object model
Further improvement on chartsheets
x
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree
Issue #82: adding more objects to the object tree, creating SimpleTypes
Issue #82: adding more objects to the object tree
Merge pull request #84 from weshatheleopard/chartsheet_support

Issue #82: implementing all the nodes as documented in the OOXML standard