added command line functionality- can now specify which local browser to run tests

@@ -110,7 +110,6 @@ module.exports = function(grunt) {
     },
     karma: {
       options: {
-        configFile: 'test/karma.conf.js',
         frameworks: ['qunit']
       },
 
@@ -120,9 +119,67 @@ module.exports = function(grunt) {
       },
 
       dev: {
+          browsers: ['Chrome', 'Safari', 'Firefox', 'Opera', 'IE', 'PhantomJS', 'ChromeCanary'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+      },
+
+      chromecanary: {
+        options: {
+          browsers: ['ChromeCanary'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
+      phantomjs: {
+        options: {
+          browsers: ['PhantomJS'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
+      opera: {
+        options: {
+          browsers: ['Opera'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
+      chrome: {
+        options: {
+          browsers: ['Chrome'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
+      safari: {
+        options: {
+          browsers: ['Safari'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
+      firefox: {
+        options: {
+          browsers: ['Firefox'],
           configFile: 'test/localkarma.conf.js',
           autoWatch: true
+        }
       },
+
+      ie: {
+        options: {
+          browsers: ['IE'],
+          configFile: 'test/localkarma.conf.js',
+          autoWatch: true
+        }
+      },
+
       ci: {
         configFile: 'test/karma.conf.js',
         autoWatch: false

@@ -26,8 +26,7 @@ module.exports = function(config) {
     // - PhantomJS
     // - IE (only Windows)
     // Example usage:
-    browsers: ['Chrome','Firefox','Safari'],
-
+    // browsers: [],
     // List of files / patterns to load in the browser
     // Add any new src files to this list.
     // If you add new unit tests, they will be picked up automatically by Karma,