Update devdependencies and bump version

package.json

@@ -1,15 +1,11 @@
 {
 	"name": "slimdom",
-	"version": "2.1.1",
-	"description": "Fast, tiny, standards-compliant XML DOM implementation for node and the browser",
+	"version": "2.1.2",
+	"description":
+		"Fast, tiny, standards-compliant XML DOM implementation for node and the browser",
 	"author": "Stef Busking",
 	"license": "MIT",
-	"keywords": [
-		"dom",
-		"xml",
-		"XMLSerializer",
-		"w3c"
-	],
+	"keywords": ["dom", "xml", "XMLSerializer", "w3c"],
 	"main": "dist/slimdom.js",
 	"module": "dist/slimdom.mjs",
 	"scripts": {
@@ -22,40 +18,29 @@
 		"test": "jest --coverage --verbose",
 		"test:debug": "node --inspect --debug-brk node_modules/jest/bin/jest.js --runInBand"
 	},
-	"files": [
-		"dist"
-	],
+	"files": ["dist"],
 	"repository": {
 		"type": "git",
 		"url": "git://github.com/bwrrp/slimdom.js.git"
 	},
 	"devDependencies": {
-		"@types/jest": "^22.1.2",
-		"jest": "^22.3.0",
+		"@types/jest": "^22.1.3",
+		"jest": "^22.4.0",
 		"prettier": "^1.10.2",
 		"rimraf": "^2.6.2",
-		"rollup": "^0.56.0",
+		"rollup": "^0.56.2",
 		"rollup-plugin-babel-minify": "^4.0.0",
 		"ts-jest": "^22.0.4",
 		"typedoc": "^0.10.0",
-		"typescript": "^2.7.1"
+		"typescript": "^2.7.2"
 	},
 	"jest": {
 		"transform": {
 			"^.+\\.tsx?$": "<rootDir>/node_modules/ts-jest/preprocessor.js"
 		},
 		"testRegex": "(\\.(tests))\\.(tsx?|jsx?)$",
-		"moduleFileExtensions": [
-			"ts",
-			"tsx",
-			"js",
-			"json",
-			"jsx"
-		],
-		"collectCoverageFrom": [
-			"src/**/*.ts"
-		],
-		"mapCoverage": true
+		"moduleFileExtensions": ["ts", "tsx", "js", "json", "jsx"],
+		"collectCoverageFrom": ["src/**/*.ts"]
 	},
 	"prettier": {
 		"printWidth": 100,