change basePath to project root to not confuse karma

 The karma-runner has a bug where on Windows the HTML-coverage report is
 saved next to the source file that was tested ie. in build/ next to
 the tested boomerang-0.9.0.js file instead of in the configured
 tests/coverage directory.

Gruntfile.js

@@ -80,23 +80,26 @@ module.exports = function (grunt) {
 	    options: {
 		configFile: "./karma.config.js",
 		preprocessors: {
-		    "../build/*.js": ["coverage"],
+		    "./build/*.js": ["coverage"],
 		},
+		basePath: "./",
 		files: [
-		    "./vendor/mocha/mocha.css",
-		    "./vendor/mocha/mocha.js",
-		    "./vendor/chai/chai.js",
-		    "./library/*.js",
-		    "../build/<%= pkg.name %>-<%= pkg.version %>.js"
+		    "tests/vendor/mocha/mocha.css",
+		    "tests/vendor/mocha/mocha.js",
+		    "tests/vendor/chai/chai.js",
+		    "tests/library/*.js",
+		    "./build/<%= pkg.name %>-<%= pkg.version %>.js"
 		]
 	    },
 	    unit: { 
 		singleRun: true,
-		browsers: ['PhantomJS']
+		colors: false,
+		browsers: ['PhantomJS']		
 	    },
 	    dev: { 
 		singleRun: false,
-		browsers: ['PhantomJS']
+		colors: false,
+		browsers: ['Chrome']
 	    }
 	}
     });

karma.config.js

@@ -4,13 +4,13 @@
 module.exports = function(config) {
   config.set({
 
-      basePath: "./tests",
+      basePath: "./",
 
       port: 4000,
       runnerPort: 4001,
       logLevel: config.LOG_INFO,
 
-      colors: true,
+      colors: false,
       autoWatch: false,
 
       frameworks: ["mocha"],
@@ -19,7 +19,7 @@ module.exports = function(config) {
 
       coverageReporter: {
 	  type : 'html',
-	  dir : 'coverage/'
+	  dir : 'tests/coverage/'
       }
   });
 };