Fix some more undefs that popped up out of nowhere

tests/unit/functions/calendar_spec.js

@@ -17,7 +17,7 @@ describe("Functions into modules/default/calendar/calendar.js", function() {
 	});
 
 	describe("capFirst", function() {
-		words = {
+		const words = {
 			"rodrigo": "Rodrigo",
 			"123m": "123m",
 			"magic mirror": "Magic mirror",
@@ -89,7 +89,7 @@ describe("Functions into modules/default/calendar/calendar.js", function() {
 	});
 
 	describe("shorten", function() {
-		strings = {
+		const strings = {
 			" String with whitespace at the beginning that needs trimming" : { length: 16, return: "String with whit…" },
 			"long string that needs shortening": { length: 16, return: "long string that…" },
 			"short string": { length: 16, return: "short string" },

tests/unit/functions/newsfeed_spec.js

@@ -12,7 +12,7 @@ describe("Functions into modules/default/newsfeed/newsfeed.js", function() {
 	require("../../../modules/default/newsfeed/newsfeed.js");
 
 	describe("capitalizeFirstLetter", function() {
-		words = {
+		const words = {
 			"rodrigo": "Rodrigo",
 			"123m": "123m",
 			"magic mirror": "Magic mirror",

tests/unit/global_vars/root_path_spec.js

@@ -62,7 +62,7 @@ describe("'global.root_path' set in js/app.js", function() {
 	});
 
 	it("should expect the global.version equals package.json file", function() {
-		versionPackage = JSON.parse(fs.readFileSync("package.json", "utf8")).version;
+		const versionPackage = JSON.parse(fs.readFileSync("package.json", "utf8")).version;
 		expect(this.sandbox.global.version).to.equal(versionPackage);
 	});
 });