add m3ua_example to .app file
add m3ua_example to .app file

FIXME: this should actually go, the example is not part of the application,
so this is only a temporay hack to make rebar happy

0x7678/osmo_ss7,aerosol/osmo_ss7,systra/osmo_ss7,Shadytel/osmo_ss7,aerosol/osmo_ss7