Add string delimiters for averages.

Before, if the average was equal to 0, it was displayed on the graph but the label was not displayed.
Now, the label is displayed.

Conflicts:
	app/views/stats/index.phtml

app/views/stats/index.phtml

@@ -92,7 +92,14 @@ function initStats() {
 	}
 	// Entry per day
 	Flotr.draw(document.getElementById('statsEntryPerDay'),
-		[<?php echo $this->count ?>],
+		[{
+			data: <?php echo $this->count ?>,
+			bars: {horizontal: false, show: true}
+		},{
+			data: avg,
+			lines: {show: true},
+			label: "<?php echo $this->average?>"
+		}],
 		{
 			grid: {verticalLines: false},
 			bars: {horizontal: false, show: true},

app/views/stats/repartition.phtml

@@ -67,7 +67,7 @@ function initStats() {
 		}, {
 			data: avg_h,
 			lines: {show: true},
-			label: <?php echo $this->averageHour?>,
+			label: "<?php echo $this->averageHour?>",
 			yaxis: 2
 		}],
 		{
@@ -96,7 +96,7 @@ function initStats() {
 		}, {
 			data: avg_dow,
 			lines: {show: true},
-			label: <?php echo $this->averageDayOfWeek?>,
+			label: "<?php echo $this->averageDayOfWeek?>",
 			yaxis: 2
 		}],
 		{
@@ -126,7 +126,7 @@ function initStats() {
 		}, {
 			data: avg_m,
 			lines: {show: true},
-			label: <?php echo $this->averageMonth?>,
+			label: "<?php echo $this->averageMonth?>",
 			yaxis: 2
 		}],
 		{