add missing pops to builtins init (when initjs was used)
remove DUK_ERR_EXEC_TERM, replace with error throwing; if another catchpoint exists this is handled nicely, if not and we're running a resumed thread, the thread terminates (which is nice); finally, if there is no catchpoint a fatal error happens which is more or less OK
remove internal DUK_ERR_EXEC_xxx codes, use the public DUK_EXEC_xxx codes instead
fix api docs for duk_safe_call and duk_pcall, the error codes are now cleaned up
api testcase for duk_pcall(), add some prints for diagnosis
ditz issue update