* New and complete character class support
* string.gsub implemented
* rawset implemented
* lua_call added (based on lua_pcall)
* lua_pop added
* newCall removed; luaGetTable and luaSetTable in LFunction updated to
use lua_call instead.
* StandardTest changed to avoid an ArrayIndexOutOfBoundsException
Unfortunately I discovered a problem where execute() will loop around too
many times and call exec() with a call frame that has already completed.
This might be due to the lack of the "tailcalls" field in our CallInfo class
that the C version maintains?
ec11c472c8