Tweaks for SSLOpenSSLConfCmd:

- use cfgMergeArray, and reduce the size of the initial array
- move SSL_CONF_cmd calls from ssl_init_ctx_protocol to
  ssl_init_server_ctx (so they are applied after ssl_init_server_certs)
- add APLOG_DEBUG-level logging for the SSL_CONF_cmd success case
- call SSL_CONF_CTX_free(cctx) when done in ssl_init_server_ctx


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1546693 13f79535-47bb-0310-9956-ffa450edef68