Tests for connection_ap_handshake_rewrite_and_attach

Hi,

Here's a branch with some tests which cover the evaluation of an exit address at the connection_ap_handshake_rewrite_and_attach function in the connection_edge_ap_handshake.c file

https://github.com/twstrike/tor_for_patching/tree/connection_edge_handshake_tests

Trac:
Username: ipazmino