What's new in thtk 4:

thecl: Support for parsing of 16-bit values.
thecl: Support for TH07, TH08, and TH09 has been added.
thecl: The special syntax for encrypted strings was removed.
thdat: Support for TH13 has been added.
thmsg: Support for TH13 has been added.
thanm: Support for TH13 has been added.
thecl: Support for TH13 has been added.
