[REVIEW 3-6] Use paragraph's numbering if explicitly specified (.docx)

[Lubos Lunak]

 Hello,

 please review and backport 
http://cgit.freedesktop.org/libreoffice/core/commit/?id=e7ab4bb6b0 for 3-6. 
When a paragraph refered to a style which referenced a numbering and the 
paragraph itself did so as well, they were mixed up. 
PROP_NUMBERING_STYLE_NAME should not be set if PROP_NUMBERING_RULES is set 
for the paragraph.

-- 
 Lubos Lunak
 l.lunak at suse.cz