+###:
+ Abstracted powf() to an osdepend wrapper. (Needed for Windows.)
+ Fixed a @ceil bug, for some C math libraries.
+
+0.4.6:
+ Added floating-point math feature.
+ Updated winstart.c. (Thanks David Kinder.)
+ Fixed @random even more, on Windows.
+ @verify works right on game files with extended memory.
+ @getiosys works right when the two store operands are different
+ variable types. (E.g., one local and one global.)
+
+0.4.5:
+ VERIFY_MEMORY_ACCESS now detects writes to the ROM section of memory.
+ Fixed off-by-eight bug in @astorebit and @aloadbit with negative bit
+ numbers.
+ Fixed an obscure bug with division and modulo of $80000000. (Thanks
+ Evin Robertson.)
+ Fixed an extremely obscure problem with changing I/O mode in the middle
+ of printing a number.
+ Glk array/string operations are now checked for memory overflows
+ (though not for ROM writing). This generates a warning at present;
+ in the future, it will be a fatal error.
+ Better fix for the @random bug.
+