bnc#636128 DOC import: handle FFData.cch

(cherry picked from commit dfa26e6d489a2c5bd79652450a9f27343008d37f)

Conflicts:
	sw/source/filter/ww8/ww8par3.cxx

Change-Id: I8020ce561a72f10b8f0f517d50407a802049bd48
bnc#636128 DOC export: handle FFData.cch

Change-Id: Ia1a3a4ef5e61d8ed2a3bde689f3d2101525efc46
(cherry picked from commit 2ad1f195b875f2c1052c8ffab79602b9f6871ccb)