v0.4

Changelog

e6ccf6b *HOST
d9eadb3 Errors via BRK. OSBYTE81, OSWORD03, OSWORD04
0f07394 File operations OSFIND, OSARGS, OSBPUT, OSBGET
e9ff191 Fix OSWORD01 and 02. TIME
8afd2b9 OSBYTEda clear VDU queue
af03515 OSCLI improvements
6fa2f88 OSWORD06, 07 and 08
871f08a Raise host filesystem errors as BRK
8cc19a2 Remove forcing uppercase. *QUIT
aba167e Set the filing system as 9: Host filing system
54e5b8c Support stdin from file
e346469 Typo