listensocket: Fix the two aliasing warnings•••m_ssl_gnutls: Fix three warnings:
1. libgcrypt will emit a warning to stdout during runtime that it has not been properly initialized
2. Resolve a warning about invalid narrowing inside a { } block. This is not valid as of C++11.
3. Resolve a warning about a wrong format specifier being used
m_messageflood Make code more readable•••Remove unnecessary checks
Use std::string::find() and ::substr() for finding the delimiter and splitting the parameter
m_ssl_openssl Port ISUPPORT changes from m_ssl_gnutls to fix #261•••Add a config option that can be used to set the value of the SSL token in ISUPPORT (77b42efc86122d3720f85bddd85a2dc80d0baff9)
Advertise only one ssl port by default in ISUPPORT (d30cdacab7100426c3773eafffd50aebf8155bba)