Rework of AuthSSL: cleanup and split up.
* Split out independent SSL functions into sslfns.h / sslfns.cc
* Reworked SSL certificate storage.
* Reworked SignDataBin / VerifyDataBin (fixed memory leaks).
* Removed funny code: /* cert->cert_info->key->pkey is NULL */
- just use X509_get_pubkey() instead.
* Removed lots of old code.
* Fixed up Mutex usage in AuthSSL - which was random.
* Removed certificates from tlvSignature serialiser obj.
* removed certificates from p3distrib messages.
* Starting removing "unused parameter" compiler warnings.
* Various related changes to make libretroshare compile.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@3222 b45a01b8-16f6-495d-af2f-9b41ad6348cc
