- Only alter __DATE__ and __TIME__ values when SOURCE_DATE_EPOCH
is not set.

- Update to version 0.9.0+git.20180712:
* Add missing 'case' statement that causes TLSv1.3 implementation to be unreachable.
* Remove extra 'break;' that prevent SSL_CTX_set_options from being set
* Fix a bug that ignored the --ssl-protocol parameter
* Implement support for TLSv1.3 in OpenSSL >= 1.1.1
* Implement specific support for TLSv1.2
* Implement specific support for TLSv1.1
* Make TLSv1 use TLSv1.0 specifically to prevent ambiguity with TLSv1.1, TLSv1.2, TLSv1.3
* Missing include (for memset(), strerror()).
* Stray line feed in fqdname causes --add-header and --add-header-file header records to be ignored by server.
* Add support for PROPFIND and REPORT in wsesslog