1. Reorganized configuration section into a file (Config.in) based
on suggestion from Luka (many thanks).
2. Synched opus to v1.0.3.
3. Synched to FS git HEAD c8be999c3446ffc8a4bbe10116855e542b29129e.
Signed-off-by: Mazi Lo <openwrt.mazilo@recursor.net>