Change Log 7.6.29 - 7.6.31 (March 3, 2016)

Preliminary Change Log 7.6.29 -> 7.6.31

• Mac: update Xcode project, build scripts and build instructions to use cURL-7.47.1, OpenSSL-1.0.2g and SQLite 3.11.0.

Note: OpenSSL-1.0.2g eliminates support for SSLv2, but cURL expects that support, so using their default builds causes link errors in the client. I work around this by having the build script patch curl-7.47.1/lib/curl_config.h to remove SSLv2 from cURL. An alternate solution would be to pass the enable-ssl2 argument to configure when building OpenSSL-1.0.2g.

• Mac: Fix bug in script to build curl-7.47.1 with ssl v2 disabled.