Update package-lock and README.md (removing CoffeeScript)

README.md

@@ -22,7 +22,7 @@ If you're on Windows, use the open source telnet client [PuTTY](https://www.chia
 * Work offline and discover local [VectorTile](https://github.com/mapbox/vector-tile-spec)/[MBTiles](https://github.com/mapbox/mbtiles-spec)
 * Compatible with most Linux and OSX terminals
 * Highly optimizied algorithms for a smooth experience
-* 100% pure Coffee-/JavaScript! :sunglasses:
+* 100% pure JavaScript! :sunglasses:
 
 ## How to install it locally
 

package-lock.json

@@ -251,11 +251,6 @@
       "integrity": "sha1-bqa989hTrlTMuOR7+gvz+QMfsYQ=",
       "dev": true
     },
-    "coffee-script": {
-      "version": "1.12.7",
-      "resolved": "https://registry.npmjs.org/coffee-script/-/coffee-script-1.12.7.tgz",
-      "integrity": "sha512-fLeEhqwymYat/MpTPUjSKHVYYl0ec2mOyALEMLmzr5i1isuG+6jfI2j2d5oBO3VIzgUXgBVIcOT9uH1TFxBckw=="
-    },
     "color-convert": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.1.tgz",