Include all headless files except tests

src/headless/.npmignore

@@ -0,0 +1,2 @@
+node_modules
+tests

src/headless/package.json

@@ -6,15 +6,6 @@
   "homepage": "https://conversejs.org",
   "license": "MPL-2.0",
   "main": "dist/converse-headless.min.js",
-  "files": [
-    "*.js",
-    "*.json",
-    "dist/",
-    "README.md",
-    "utils/*.js",
-    "templates/*.html",
-    "templates/*.svg"
-  ],
   "keywords": [
     "converse.js",
     "XMPP",