next release

A lot of my recent commits are actually intended for OpenLDAP 2.5. A few of the recent TLS-related changes added to the libldap API, so one way or another they will require a library version bump. The question is whether these changes should go into the next 2.4 release: channel binding support OpenSSL elliptic curve support logging tls version/cipher info

It seems that given the heightened awareness of encryption matters due to recent revelations about NSA data gathering, it might be a good idea to include these in 2.4 as well. Any opinions?