Rename private functions to add fz prefix.
Rename private functions to add fz prefix.

Ignore-this: 9e22a8ce42b68366f537c5dc9e15c9f3

darcs-hash:20100707172933-f546f-65b0af709a0608e4d0c16981fcc0f3c45bfe46ba.gz

nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf,nqv/mupdf