make charts responsive; place legend at the bottom

Author: mbehlendorf

src/charts/commitsByAuthor.js

@@ -45,7 +45,8 @@ angular.module('adf.widget.scm')
         legend: {
           display: true,
           position: "bottom"
-        }
+        },
+        responsive: true
       };
 
       var chart = {

src/charts/commitsByMonth.js

@@ -49,7 +49,12 @@ angular.module('adf.widget.scm')
               }
             }
           ]
-        }
+        },
+        legend: {
+          display: true,
+          position: "bottom"
+        },
+        responsive: true
       };
       var chart = {
         labels: [],

src/charts/commitsLastCommits.js

@@ -48,7 +48,12 @@ angular.module('adf.widget.scm')
               }
             }
           ]
-        }
+        },
+        legend: {
+          display: true,
+          position: "bottom"
+        },
+        responsive: true
       };
       var chartData = [];
       var chart = {