Add package.json and update gulpfile.

gulpfile.js

@@ -9,8 +9,8 @@ var paths = {
     dest:     'assets/maps'
 };
 
-gulp.task('clear', function(cb) {
-    del([paths.dest + '/' + paths.minified], cb);
+gulp.task('clear', function() {
+    del([paths.dest + '/' + paths.minified]);
 });
 
 gulp.task('scripts', ['clear'], function() {

package.json

@@ -0,0 +1,31 @@
+{
+  "name": "contao-leaflet-maps",
+  "version": "1.0.0",
+  "description": "Leaflet maps for Contao",
+  "main": "gulpfile.js",
+  "dependencies": {
+    "del": "^2.2.2",
+    "gulp": "^3.9.1",
+    "gulp-concat": "^2.6.0",
+    "gulp-uglify": "^2.0.0"
+  },
+  "devDependencies": {},
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/netzmacht/contao-leaflet-maps.git"
+  },
+  "keywords": [
+    "Contao",
+    "Leaflet",
+    "Maps"
+  ],
+  "author": "netzmacht David Molineus",
+  "license": "LGPL-3.0",
+  "bugs": {
+    "url": "https://github.com/netzmacht/contao-leaflet-maps/issues"
+  },
+  "homepage": "https://github.com/netzmacht/contao-leaflet-maps#readme"
+}