--default ship flags in the iff_defs table were not correctly translated from parse flags to ship/object flags
--ships were created with default allowed comm orders regardless of which team they were on
change skybox selection to be a text entry or browse instead of only text entry
allow envmap selected in background editor to be used by FRED
make texture replacement work in FRED for ships (Mantis bug #1068)
add a pause/unpause for parsing so that we can safely start parsing something new then continue parsing something old
make Mission_text and Mission_text_raw only use the memory needed, and free it when it doesn't need to parse anymore
(should work ok with FRED2, but I wasn't able to test it)
that used to reside in hasn't been marked as empty. This leads to the node still appearing in fred
if the user tries to delete the "ghosted" jump node, fred crashes.