Replace memcpy with memmove, non-ambiguous copy, bump related versions

## ExampleLib Example: an example of using Automake to link with a library

AC_INIT([ED25519], [3:7], [bernd@net2o.de], [ed25519-donna],

AC_INIT([ED25519], [3:8], [bernd@net2o.de], [ed25519-donna],

        [http://keccak.noekeon.org/])

AC_PREREQ([2.59])

AM_INIT_AUTOMAKE([1.10 -Wall no-define])