Removed *.js.map files from published packages as the corresponding *…

….ts files are not published and they are therefore useless (fixes #6).

package.json

@@ -51,7 +51,6 @@
   "files": [
     "dist/**/*.js",
     "dist/**/*.d.ts",
-    "dist/**/**.js.map",
     "!dist/**/*.tests.*"
   ],
   "watch": {