diff --git a/.travis.yml b/.travis.yml
index c66ea5fb7..2c250f717 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,6 +3,10 @@ node_js:
   - "0.11"
   - "0.10"
 
+before_install:
+  - "export DISPLAY=:99.0"
+  - "sh -e /etc/init.d/xvfb start"
+
 before_script:
   - npm install
 
diff --git a/gulpfile.js b/gulpfile.js
index 39cbc817e..651217eaf 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -139,7 +139,7 @@ function unittestTask() {
 
 	return gulp.src(files)
 		.pipe(karma({
-			configFile: 'karma.conf.js',
+			configFile: 'karma.conf.ci.js',
 			action: 'run'
 		}));
 }
diff --git a/karma.conf.ci.js b/karma.conf.ci.js
new file mode 100644
index 000000000..826b65575
--- /dev/null
+++ b/karma.conf.ci.js
@@ -0,0 +1,7 @@
+module.exports = function(config) {
+	config.set({
+		browsers: ['Firefox'],
+		frameworks: ['jasmine'],
+		reporters: ['progress', 'html'],
+	});
+};
\ No newline at end of file
diff --git a/src/charts/Chart.Doughnut.js b/src/charts/Chart.Doughnut.js
index 333a0bbeb..05a9764bd 100644
--- a/src/charts/Chart.Doughnut.js
+++ b/src/charts/Chart.Doughnut.js
@@ -15,6 +15,6 @@
 		config.type = 'doughnut';
 
 		return new Chart(context, config);
-	}
+	};
 	
 }).call(this);
diff --git a/src/charts/Chart.Line.js b/src/charts/Chart.Line.js
index d5e7cf76c..8e26f09b5 100644
--- a/src/charts/Chart.Line.js
+++ b/src/charts/Chart.Line.js
@@ -9,6 +9,6 @@
 		config.type = 'line';
 
 		return new Chart(context, config);
-	}
+	};
 	
 }).call(this);
diff --git a/src/charts/Chart.PolarArea.js b/src/charts/Chart.PolarArea.js
index 9dbdf1b39..20171f7f7 100644
--- a/src/charts/Chart.PolarArea.js
+++ b/src/charts/Chart.PolarArea.js
@@ -15,6 +15,6 @@
 		config.type = 'polarArea';
 
 		return new Chart(context, config);
-	}
+	};
 	
 }).call(this);
diff --git a/src/charts/Chart.Radar.js b/src/charts/Chart.Radar.js
index 2f1f82606..7680e25f7 100644
--- a/src/charts/Chart.Radar.js
+++ b/src/charts/Chart.Radar.js
@@ -14,6 +14,6 @@
 		config.type = 'radar';
 
 		return new Chart(context, config);
-	}
+	};
 	
 }).call(this);
diff --git a/src/charts/Chart.Scatter.js b/src/charts/Chart.Scatter.js
index 8863ed5e6..ee1ec474a 100644
--- a/src/charts/Chart.Scatter.js
+++ b/src/charts/Chart.Scatter.js
@@ -34,6 +34,6 @@
 		config.options = helpers.configMerge(defaultConfig, config.options);
 		config.type = 'line';
 		return new Chart(context, config);
-	}
+	};
 	
 }).call(this);
\ No newline at end of file
diff --git a/src/controllers/controller.doughnut.js b/src/controllers/controller.doughnut.js
index 4ab485058..1188a7c2b 100644
--- a/src/controllers/controller.doughnut.js
+++ b/src/controllers/controller.doughnut.js
@@ -92,7 +92,7 @@
 			// Make sure that we handle number of datapoints changing
 			if (numData < numArcs) {
 				// Remove excess bars for data points that have been removed
-				this.getDataset().metaData.splice(numData, numArcs - numData)
+				this.getDataset().metaData.splice(numData, numArcs - numData);
 			} else if (numData > numArcs) {
 				// Add new elements
 				for (var index = numArcs; index < numData; ++index) {
diff --git a/src/controllers/controller.polarArea.js b/src/controllers/controller.polarArea.js
index 709cc1591..45e4b33a5 100644
--- a/src/controllers/controller.polarArea.js
+++ b/src/controllers/controller.polarArea.js
@@ -87,7 +87,7 @@
 			// Make sure that we handle number of datapoints changing
 			if (numData < numPoints) {
 				// Remove excess bars for data points that have been removed
-				this.getDataset().metaData.splice(numData, numPoints - numData)
+				this.getDataset().metaData.splice(numData, numPoints - numData);
 			} else if (numData > numPoints) {
 				// Add new elements
 				for (var index = numPoints; index < numData; ++index) {
@@ -206,12 +206,4 @@
 		},
 
 	});
-
-
-
-	return;
-
-
-	Chart.Type.extend({});
-
 }).call(this);
diff --git a/src/controllers/controller.radar.js b/src/controllers/controller.radar.js
index 40fc4a7ab..ddbff5e15 100644
--- a/src/controllers/controller.radar.js
+++ b/src/controllers/controller.radar.js
@@ -103,7 +103,7 @@
 			// Make sure that we handle number of datapoints changing
 			if (numData < numPoints) {
 				// Remove excess bars for data points that have been removed
-				this.getDataset().metaData.splice(numData, numPoints - numData)
+				this.getDataset().metaData.splice(numData, numPoints - numData);
 			} else if (numData > numPoints) {
 				// Add new elements
 				for (var index = numPoints; index < numData; ++index) {
diff --git a/src/core/core.controller.js b/src/core/core.controller.js
index 79e7d10d3..45e8869e5 100644
--- a/src/core/core.controller.js
+++ b/src/core/core.controller.js
@@ -158,7 +158,7 @@
 
 				this.scale = scale;
 
-				this.scales['radialScale'] = scale;
+				this.scales.radialScale = scale;
 			}
 
 			Chart.scaleService.update(this, this.chart.width, this.chart.height);
@@ -313,13 +313,13 @@
 
 			helpers.each(this.data.datasets, function(dataset, datasetIndex) {
 				if (helpers.isDatasetVisible(dataset)) {
-					for (var elementIndex = 0; elementIndex < dataset.metaData.length; elementIndex++) {
-						if (dataset.metaData[elementIndex].inLabelRange(eventPosition.x, eventPosition.y)) {
+					helpers.each(dataset.metaData, function(element, elementIndex) {
+						if (element.inLabelRange(eventPosition.x, eventPosition.y)) {
 							helpers.each(dataset.metaData, function(element, index) {
 								elementsArray.push(element);
 							}, this);
 						}
-					}
+					}, this);
 				}
 			}, this);
 
@@ -441,8 +441,8 @@
 						break;
 					case 'label':
 					case 'dataset':
-						for (var i = 0; i < this.active.length; i++) {
-							this.data.datasets[this.active[i]._datasetIndex].controller.setHoverStyle(this.active[i]);
+						for (var j = 0; j < this.active.length; j++) {
+							this.data.datasets[this.active[j]._datasetIndex].controller.setHoverStyle(this.active[j]);
 						}
 						break;
 					default:
diff --git a/src/core/core.scale.js b/src/core/core.scale.js
index 556ea0039..133801150 100644
--- a/src/core/core.scale.js
+++ b/src/core/core.scale.js
@@ -114,7 +114,7 @@
 
 				// Reset position before calculating rotation
 				this.top = 0;
-				this.bottom = this.height
+				this.bottom = this.height;
 			}
 
 			// Reset padding
diff --git a/src/elements/element.arc.js b/src/elements/element.arc.js
index 209c505d9..615cab867 100644
--- a/src/elements/element.arc.js
+++ b/src/elements/element.arc.js
@@ -45,7 +45,7 @@
 
 				// Put into the range of (-PI/2, 3PI/2]
 				var startAngle = vm.startAngle < (-0.5 * Math.PI) ? vm.startAngle + (2.0 * Math.PI) : vm.startAngle > (1.5 * Math.PI) ? vm.startAngle - (2.0 * Math.PI) : vm.startAngle;
-				var endAngle = vm.endAngle < (-0.5 * Math.PI) ? vm.endAngle + (2.0 * Math.PI) : vm.endAngle > (1.5 * Math.PI) ? vm.endAngle - (2.0 * Math.PI) : vm.endAngle
+				var endAngle = vm.endAngle < (-0.5 * Math.PI) ? vm.endAngle + (2.0 * Math.PI) : vm.endAngle > (1.5 * Math.PI) ? vm.endAngle - (2.0 * Math.PI) : vm.endAngle;
 
 				//Check if within the range of the open/close angle
 				var betweenAngles = (pointRelativePosition.angle >= startAngle && pointRelativePosition.angle <= endAngle),
diff --git a/src/scales/scale.category.js b/src/scales/scale.category.js
index e85ba04ea..039a9bef6 100644
--- a/src/scales/scale.category.js
+++ b/src/scales/scale.category.js
@@ -24,23 +24,23 @@
             if (this.isHorizontal()) {
                 var innerWidth = this.width - (this.paddingLeft + this.paddingRight);
                 var valueWidth = innerWidth / Math.max((this.data.labels.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
-                var valueOffset = (valueWidth * index) + this.paddingLeft;
+                var widthOffset = (valueWidth * index) + this.paddingLeft;
 
                 if (this.options.gridLines.offsetGridLines && includeOffset) {
-                    valueOffset += (valueWidth / 2);
+                    widthOffset += (valueWidth / 2);
                 }
 
-                return this.left + Math.round(valueOffset);
+                return this.left + Math.round(widthOffset);
             } else {
                 var innerHeight = this.height - (this.paddingTop + this.paddingBottom);
                 var valueHeight = innerHeight / Math.max((this.data.labels.length - ((this.options.gridLines.offsetGridLines) ? 0 : 1)), 1);
-                var valueOffset = (valueHeight * index) + this.paddingTop;
+                var heightOffset = (valueHeight * index) + this.paddingTop;
 
                 if (this.options.gridLines.offsetGridLines && includeOffset) {
-                    valueOffset += (valueHeight / 2);
+                    heightOffset += (valueHeight / 2);
                 }
 
-                return this.top + Math.round(valueOffset);
+                return this.top + Math.round(heightOffset);
             }
         },
     });
diff --git a/test/scale.linear.tests.js b/test/scale.linear.tests.js
index ac190a3c5..87b82662d 100644
--- a/test/scale.linear.tests.js
+++ b/test/scale.linear.tests.js
@@ -1396,6 +1396,9 @@ describe('Linear Scale', function() {
 		}, {
 			"name": "rotate",
 			"args": [-1.5707963267948966]
+		},  {
+			"name": "setFillStyle",
+			"args": ["#666"]
 		}, {
 			"name": "setFillStyle",
 			"args": ["#666"]