+Unify base64 handling.
+ There's base64 encoding and decoding going on in:
+ networking/wget.c:base64enc()
+ coreutils/uudecode.c:read_base64()
+ coreutils/uuencode.c:tbl_base64[]
+ networking/httpd.c:decodeBase64()
+ And probably elsewhere. That needs to be unified into libbb functions.
+---