This update for steam fixes the following issues:

- Fix steam controller in wireless mode. (boo#1022010)
- Update udev rules for HTC Vive and order them so they run after 50-udev-default.rules but before 73-seat-late.rules.
- Add appdata.xml for https://software.opensuse.org/appstore.
- Surround all home directory usages with quotes.
- Search and remove libstdc from steam library directories to ensure apps shipping their own incompatible versions work.