diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1909b01c7bc..7b525a62999 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 **Fixes**
 - [Issue #802](https://github.com/grafana/grafana/issues/802). Annotations: Fix when using InfluxDB datasource
 - [Issue #795](https://github.com/grafana/grafana/issues/795). Chrome: Fix for display issue in chrome beta & chrome canary when entering edit mode
+- [Issue #818](https://github.com/grafana/grafana/issues/818). Graph: Added percent y-axis format
 
 # 1.8.0-RC1 (2014-09-12)
 
diff --git a/src/app/components/kbn.js b/src/app/components/kbn.js
index cefcb42d289..374d2f561b8 100644
--- a/src/app/components/kbn.js
+++ b/src/app/components/kbn.js
@@ -531,6 +531,10 @@ function($, _, moment) {
       return function(val) {
         return kbn.nanosFormat(val, decimals);
       };
+    case 'percent':
+      return function(val, axis) {
+        return kbn.noneFormat(val, axis ? axis.tickDecimals : null) + ' %';
+      };
     default:
       return function(val, axis) {
         return kbn.noneFormat(val, axis ? axis.tickDecimals : null);
diff --git a/src/app/panels/graph/axisEditor.html b/src/app/panels/graph/axisEditor.html
index 6800ee832b9..9380cb99327 100644
--- a/src/app/panels/graph/axisEditor.html
+++ b/src/app/panels/graph/axisEditor.html
@@ -4,7 +4,7 @@
     <h5>Left Y Axis</h5>
        <div class="editor-option">
         <label class="small">Format <tip>Y-axis formatting</tip></label>
-        <select class="input-small" ng-model="panel.y_formats[0]" ng-options="f for f in ['none','short','bytes', 'bits', 'bps', 's', 'ms', 'µs', 'ns']" ng-change="render()"></select>
+        <select class="input-small" ng-model="panel.y_formats[0]" ng-options="f for f in ['none','short','bytes', 'bits', 'bps', 's', 'ms', 'µs', 'ns', 'percent']" ng-change="render()"></select>
       </div>
       <div class="editor-option">
         <label class="small">Min / <a ng-click="toggleGridMinMax('leftMin')">Auto <i class="icon-star" ng-show="_.isNull(panel.grid.leftMin)"></i></a></label>
@@ -23,7 +23,7 @@
     <h5>Right Y Axis</h5>
        <div class="editor-option">
         <label class="small">Format <tip>Y-axis formatting</tip></label>
-        <select class="input-small" ng-model="panel.y_formats[1]" ng-options="f for f in ['none','short','bytes', 'bits', 'bps', 's', 'ms', 'µs', 'ns']" ng-change="render()"></select>
+        <select class="input-small" ng-model="panel.y_formats[1]" ng-options="f for f in ['none','short','bytes', 'bits', 'bps', 's', 'ms', 'µs', 'ns', 'percent']" ng-change="render()"></select>
       </div>
       <div class="editor-option">
         <label class="small">Min / <a ng-click="toggleGridMinMax('rightMin')">Auto <i class="icon-star" ng-show="_.isNull(panel.grid.rightMin)"></i></a></label>
diff --git a/src/app/panels/graph/seriesOverridesCtrl.js b/src/app/panels/graph/seriesOverridesCtrl.js
index 4f54c6d0e6f..1b6b1dfc144 100644
--- a/src/app/panels/graph/seriesOverridesCtrl.js
+++ b/src/app/panels/graph/seriesOverridesCtrl.js
@@ -70,7 +70,7 @@ define([
     $scope.addOverrideOption('Staircase line', 'steppedLine', [true, false]);
     $scope.addOverrideOption('Points', 'points', [true, false]);
     $scope.addOverrideOption('Points Radius', 'pointradius', [1,2,3,4,5]);
-    $scope.addOverrideOption('Stack', 'stack', [true, false]);
+    $scope.addOverrideOption('Stack', 'stack', [true, false, 2, 3, 4, 5]);
     $scope.addOverrideOption('Y-axis', 'yaxis', [1, 2]);
     $scope.addOverrideOption('Z-index', 'zindex', [-1,-2,-3,0,1,2,3]);
     $scope.updateCurrentOverrides();
diff --git a/src/app/partials/playlist.html b/src/app/partials/playlist.html
index 3b3ba7600c4..1517678e730 100644
--- a/src/app/partials/playlist.html
+++ b/src/app/partials/playlist.html
@@ -38,7 +38,7 @@
 				<div class="editor-option">
 					<div class="span4">
 						<span><i class="icon-question-sign"></i>
-							dashboards available in the playlist are only the once marked as favorites (stored in local browser storage).
+							dashboards available in the playlist are only the ones marked as favorites (stored in local browser storage).
 							to mark a dashboard as favorite, use save icon in the menu and in the dropdown select mark as favorite
 							<br/><br/>
 						</span>
diff --git a/src/app/services/graphite/gfunc.js b/src/app/services/graphite/gfunc.js
index 533bb897283..1acfad8739b 100644
--- a/src/app/services/graphite/gfunc.js
+++ b/src/app/services/graphite/gfunc.js
@@ -86,6 +86,13 @@ function (_) {
     category: categories.Calculate,
   });
 
+  addFuncDef({
+    name: 'group',
+    params: optionalSeriesRefArgs,
+    defaultParams: ['#A', '#B'],
+    category: categories.Combine,
+  });
+
   addFuncDef({
     name: 'sumSeries',
     shortName: 'sum',
diff --git a/src/favicon.ico b/src/favicon.ico
deleted file mode 100644
index 23174fc9623..00000000000
Binary files a/src/favicon.ico and /dev/null differ
diff --git a/src/index.html b/src/index.html
index bf3a2179363..1c99649d8b7 100644
--- a/src/index.html
+++ b/src/index.html
@@ -9,7 +9,7 @@
 
     <title>Grafana</title>
     <link rel="stylesheet" href="css/grafana.dark.min.css" title="Dark">
-    <link rel="icon" type="image/png" href="img/fav_dark_16.png">
+    <link rel="icon" type="image/png" href="img/fav32.png">
 
     <!-- build:js app/app.js -->
     <script src="vendor/require/require.js"></script>