Cleaned up karma configuration files

gulpfile.js

@@ -39,10 +39,7 @@ var paths = {
   },
 
   tests: {
-    configs: {
-      local: "tests/karma.conf.js",
-      travis: "tests/karma-travis.conf.js"
-    },
+    config: "tests/karma.conf.js",
     files: [
       "bower_components/firebase/firebase.js",
       "tests/phantomjs-es5-shim.js",
@@ -97,10 +94,10 @@ gulp.task("scripts", function() {
 
 /* Uses the Karma test runner to run the Jasmine tests */
 gulp.task("test", function() {
-  var configFile = travis ? paths.tests.configs.travis : paths.tests.configs.local;
   return gulp.src(paths.tests.files)
     .pipe(karma({
-      configFile: configFile,
+      configFile: paths.tests.config,
+      browsers: travis ? ["Firefox"] : ["Chrome"],
       action: "run"
     }))
     .on("error", function(error) {

tests/karma-travis.conf.js

@@ -1,26 +0,0 @@
-module.exports = function(config) {
-  config.set({
-    frameworks: ["jasmine"],
-    browsers: ["Firefox"],
-    autowatch: false,
-    singleRun: true,
-
-    preprocessors: {
-      "../src/*.js": "coverage"
-    },
-
-    reporters: ["spec", "failed", "coverage"],
-    coverageReporter: {
-      reporters: [
-        {
-          type: "lcovonly",
-          dir: "coverage",
-          subdir: "."
-        },
-        {
-          type: "text-summary"
-        }
-      ]
-    },
-  });
-};

tests/karma.conf.js

@@ -1,7 +1,6 @@
 module.exports = function(config) {
   config.set({
     frameworks: ["jasmine"],
-    browsers: ["Chrome"],
     autowatch: false,
     singleRun: true,