give credit

include test files in distribution

v0.8.2

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 * Adapted to the new API in rustls-ffi v0.8.2
 * Brought in Apache's pyhttpd test framework and adjusted test cases to its use.

v0.8.1 with proxy machine certificate support

 * needs ruslts-ffi v0.7.2 minimum.
 * Support for machine certificates in proxy conections. Use `TLSProxyMachineCertificate`
   similar to `TLSCertificate` to configure a certificate to use for authentication
   against a proxied backend server.
   As with `TLSCertificate` more than one certificate may be configured and the
   first compatible is chosen by the `rustls` library for the connection.

 * prep for v0.8.0 release, speling errors in ChangeLog fixed.

version bump.

removing demo files