Add build status badge to README and fix module version

README.md

@@ -1,5 +1,7 @@
 # Sparrow
 
+[![Build Status](https://jenkins.brendanabolivier.com/buildStatus/icon?job=Sparrow)](https://jenkins.brendanabolivier.com/job/Sparrow/)
+
 Sparrow is a front-end forum software using a [Matrix](https://matrix.org) homeserver
 as its back-end. This means that, as long as you have a homeserver set up somewhere,
 hosting Sparrow will only consist in serving its front-end content and pointing it

package.json

@@ -23,7 +23,7 @@
 		"babel-preset-flow": "6.23.0",
 		"flow-bin": "0.55.0",
 		"html-webpack-plugin": "2.30.1",
-		"uglifyjs-webpack-plugin": "^0.4.6",
+		"uglifyjs-webpack-plugin": "0.4.6",
 		"webpack": "3.6.0"
 	},
 	"dependencies": {