Version 1.2

Hashes are now in lowercase by default.

The -z has been added.

The sha3sum command with the additional -a option
has been added. This command exist only for
compatibility with busybox. However, unlike
busybox's implementation, this implementation does
not support -s or -w.

Building with `make mcb` followed by installing
with `make install-mcb` will install multicall
binary and symlinks for each command instead of
individual commands. This reduces the space
requires for the binaries from 280K to 28K.