redisable on firefox
reload document when adjusting due to hash value mismatch
fix undo/redo deleting history
remove diff_mathc_patch from compressed block
don't use query parameters in font urls
adjust export to new document format
translate html -> xhtml via json translation instead of string replacement
reenable native document import/export
reenable book composition
allow for book epub export
export display math node correctly
reenable html book export
reenable book print output
make book print output use configurable document style system
remove server debug output