#56 ns_base64encode fails on embedded nulls

[Zoran Vasiljevic]

lexxsrv:nscp 8> ns_base64encode test\0
dGVzdMCA

lexxsrv:nscp 9> base64::encode test\0
dGVzdAA=

The built-in ns_base64encode seems to have
problems with strings containing embedded
characters.

This works though:

lexxsrv:nscp 4> ns_base64encode test
dGVzdA==
lexxsrv:nscp 5> base64::encode test
dGVzdA==

[Zoran Vasiljevic]

Logged In: YES
user_id=95086

Fixed in HEAD.