Spotter-VM/_vm/etc/apk/repositories

http://dl-cdn.alpinelinux.org/alpine/v3.9/main
http://dl-cdn.alpinelinux.org/alpine/v3.9/community
@vm http://repo.spotter.cz/apk
Squashed commit of the following: - Bump basic OS to Alpine 3.9 - Restructure repo and add layer versioning - Use JSON for all metadata - Merge abuild branch (but without abuild) 2019-02-26 20:24:02 +01:00			`http://dl-cdn.alpinelinux.org/alpine/v3.9/main`
			`http://dl-cdn.alpinelinux.org/alpine/v3.9/community`
Switch edge repositories to spotter 2019-06-02 11:31:24 +02:00			`@vm http://repo.spotter.cz/apk`