packet_dispatch.[ch] and void.[ch].

Rev: src/connection.h:1.17
Rev: src/crypto.h:1.7
Rev: src/keyexchange.h:1.15
Rev: src/packet_disconnect.c:1.3(DEAD)
Rev: src/packet_disconnect.h:1.4(DEAD)
Rev: src/packet_dispatch.c:1.7(DEAD)
Rev: src/packet_dispatch.h:1.6(DEAD)
Rev: src/publickey_crypto.c:1.13
Rev: src/publickey_crypto.h:1.9
Rev: src/unpad.h:1.9
Rev: src/void.c:1.8(DEAD)
Rev: src/void.h:1.6(DEAD)
Rev: src/write_buffer.h:1.7