[REVIEW 3-6] two small fixes around ooxml export

[Markus Mohrhard]

Hey,

[1] fixes a problem with the color export to ooxml.
[2] fixes a problem that the dxfs record is written after the color
record which makes the styles.xml invalid

Regards,
Markus

[1] http://cgit.freedesktop.org/libreoffice/core/commit/?id=a59d4707bd9eaa4c5aae0195220ff45ad11ec5c9
[2] http://cgit.freedesktop.org/libreoffice/core/commit/?id=a5f449fe9c26a56271c68d70839348fc0047878c