add cxJsonReset() and cxPropertiesReset()

add documentation - resolves #431

and changelog entry for issue #523

add fake doc to mute doxygen complaints

minor cleanup

json: enable multiple subsequent fills - relates to #431

fix that cxBufferSeek() cannot move pos past the end - fixes #523

(0) -1000 -300 -100 -30 -10 -7 +7 +10 +30 tip

mercurial