m_ssl_gnutls Add compile time option for allowing sha256 certificate fingerprints
m_ssl_openssl Add compile time option to enable ECDH
m_ssl_openssl Add compile time option that allows disabling renegotiations
Set the parameter of -b to the banmask actually removed

This is needed because of the case insensitive match
Check the return value of getnameinfo() on Windows in insp_inet_ntop() and return NULL if it fails
Fail AAAA DNS queries if inet_ntop() fails
Fix m_banredirect causing bans added for hosts being rewritten as nicks
m_delaymsg Add option to disallow NOTICEs too
Merge pull request #940 from SaberUK/insp20+fix-makefile

[2.0] Fix some small bugs in the makefile template.
Use gnutls_rnd instead of gcry_randomize on newer GnuTLS versions.

This is a modified version of 690c372.