Fixed bug that caused a crash when using keep_vba=True and there are sheets with no VBA.
Fixed additional problems with visual basic support
fized bug with legacyDrawing under ElemebtTree
fixed some tests that are dependent on dict iteration order
Merge

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Merge

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removed canon_repr

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removed env2 and env3 from .hgignore and commented root_rels id

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removed hard-wired customUI rId and tidied vba code in worksheet.py

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Update copyright.

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Removed unnecessary file / path declaration at the top of the file.
Regex was ^(# file openpyxl)(.*)(py)(\n\n)

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Updated changes.

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Update roadmap

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Update roadmap.

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Merged in jbovey/openpyxl/1.8 (pull request #67)

Bug fixes to the VBA code

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Some generators produce Excel files which do not have workBookView elements.

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Merge in 1.8
Added tag 1.8 for changeset 7f14377d6a9b
Prepare 1.9 branch

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Update roadmap

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