Change: account for version options when launching game (and add needed support routines); change: use faster search for filling data when changing IWADs in main form.
Refactor: rename bitmasks.pas methods to more meaningful names. Add: collection of default unique bitmasks. Add: more methods for bitmask manipulation.
Change: remove unused variable.
Fix: don't crash if first run or empty WAD list. Fix: don't force restart if first run.
Add: make sure program is restarted after .zde.cfg conversion.
Change: don't store game name in .zde.cfg as it is redundant.
Refactor: rename some variables and fields to better reflect their data type.
Change: remove unused item.