Rygel 0.19.2 Unstable Release Fixes Various Issues

Rygel 0.19.2 includes minor build fixes, various coding style fixes, as well as documentation updates. It also fixes the sorting by date function, and the command-line options are now translatable. Moreover, the developers implemented a new message, which appears when Rygel runs streaming-only mode, and a proper fallback to GET, when the peer doesn’t support HEAD.