Romoves the use of enum-like constants from SrtpListeners because it is a part of neomedia and may use MediaType instead.
Adds support for DTLS-SRTP with XMPP.
Fixes warnings, removes obscure and inefficient anonymous classes.
Rebuilds jnwasapi.dll with a newer version of mingw64.
Removes false jar signing.
Fixes issues with DTLS-SRTP.