Use marked as a dependency

Makefile

@@ -75,7 +75,6 @@ dist/iD.js: \
 	js/lib/jxon.js \
 	js/lib/lodash.js \
 	js/lib/togeojson.js \
-	js/lib/marked.js \
 	js/id/start.js \
 	js/id/id.js \
 	$(MODULE_TARGETS) \

index.html

@@ -28,7 +28,6 @@
         <script src='js/lib/bootstrap-tooltip.js'></script>
         <script src='js/lib/diff3.js'></script>
         <script src='js/lib/togeojson.js'></script>
-        <script src='js/lib/marked.js'></script>
 
         <script src='js/id/id.js'></script>
 

modules/ui/help.js

@@ -1,6 +1,7 @@
 import { Icon } from '../svg/index';
 import { intro } from './intro';
 import { tooltipHtml } from './tooltipHtml';
+import marked from 'marked';
 
 export function Help(context) {
     var key = 'H';

package.json

@@ -22,6 +22,7 @@
   ],
   "license": "ISC",
   "dependencies": {
+    "marked": "0.3.5",
     "osm-auth": "0.2.8",
     "rbush": "2.0.1",
     "sexagesimal": "0.5.0"