update: NodeLink version

This commit updates NodeLink version to make a release.

update: NodeLink version

This commit updates NodeLink version for the release.

fix: `Dockerfile`

This commit fixes Dockerfile by adding git to install npm libraries.

update: NodeLink version

This commit updates NodeLink, for a release.

fix: crash on race condition

This commit fixes a crash that happened when the client disconnected first than the play request.

fix: authorize servers mismatching certificate

This commit fixes an security issue where NodeLink would still keep if the server didn't match with the certificate, easing up MTM attacks.

fix: not handling `req` `error`

This commit fixes the issue that `req` `error`s wouldn't be handled.

fix: retrieveStream;improve: makeRequests

This commit fixes sources that aren't YouTube, Deezer and SoundCloud by improving the makeRequest functions.

fix: README grammar

This commit fixes the grammar in the README, with duplicated "Node.js".

fix: spotify & master dependant sources

This fixes spotify search and master dependant sources.