Get rid of lodash

src/util.ts

@@ -1,8 +1,10 @@
-import * as _ from 'lodash';
-
-
 export function mapFromObject<T>(obj: {[key: string]: T}): Map<string, T> {
-	return new Map(_.toPairs(obj));
+	let ret = new Map();
+
+	for (let k of Object.keys(obj))
+		ret.set(k, obj[k]);
+
+	return ret;
 }
 
 export function mapValues<K, V1, V2>(f: (v: V1) => V2, map: Map<K, V1>): Map<K, V2> {

src/view/MapView.ts

@@ -1,5 +1,3 @@
-import * as _ from 'lodash';
-
 import {nextPowerOf2} from '../util';
 
 import Renderer from './Renderer';