Use a longer timeout when removing a mirror

Use IEC prefixes for file sizes

Update OpenStreetMap tile server URL

rsync: support rsync-ssl connections too

http: Move If-Modified-Since code in its own file

scan: Log when the result of a mirror scan is commited to the database

scan: Log the number of files removed after the source was scanned

Release 0.6.1

Update CHANGELOG

config: Remove copy of isInSlice

networ, util: Move Is{Primary,Additional}Country into the network package

config: Normalize URL for fallback mirrors as well

http: Fix "Internal Server Error" regressions

http: Add testing for mirror handler

config: Make the fallback struct public