Minor Makefile fixes

Fix youtube-dl path in Docker file

Fix download links when using custom port mxpv#43

Fix hostname config option

Initial CLI release

Merge pull request mxpv#29 from podsync/dependabot/npm_and_yarn/ui/lo…

…dash-4.17.15

Bump lodash from 4.17.11 to 4.17.15 in /ui