Officegen 0.4.0

Changes:

- For all Microsoft Office based documents:
    - Bug fix: Changing the document's properties from the document's settings didn't work.
    - You can now change also the 'categories' and 'status' in the document's properties.
    - 'creator' now changed to 'aurthor' (but you can still use also 'creator').
- PowerPoint:
    - Charts now working again, using jszip so no need for any external tool.
- Word:
    - Paragraph's text new options:
        - 'shdType' and 'shdColor' (used with 'back').
        - 'border', 'borderColor' and 'borderSize'.
        - 'highlight'.
    - All inside table borders (by cgarethc).