Added missing descriptions for widgets from vipercharts package

workflows/vipercharts/db/package_data.json

@@ -784,7 +784,7 @@
       "interactive": false, 
       "has_progress_bar": false, 
       "order": 1, 
-      "description": ""
+      "description": "Scatter chart - ROC space. Provides an easy and intuitive visual performance evaluation in terms of Recall, Precision and F-measure. By introducing the F-isolines into the precision-recall space the 2-dimensional graphic representation reveals information about an additional, third evaluation measure. http://viper.ijs.si/types/scatter/"
     }
   }, 
   {
@@ -828,7 +828,7 @@
       "interactive": false, 
       "has_progress_bar": false, 
       "order": 7, 
-      "description": ""
+      "description": "Scatter chart - Precision-Recall space. Provides an easy and intuitive visual performance evaluation in terms of Recall, Precision and F-measure. By introducing the F-isolines into the precision-recall space the 2-dimensional graphic representation reveals information about an additional, third evaluation measure. http://viper.ijs.si/types/scatter/"
     }
   }, 
   {

workflows/vipercharts/package_data/widgets/5dc72a81-347c-4a40-8658-2591961477e5.json

@@ -10,7 +10,7 @@
       "interaction_view": "", 
       "has_progress_bar": false, 
       "image": "", 
-      "description": "", 
+      "description": "Scatter chart - Precision-Recall space. Provides an easy and intuitive visual performance evaluation in terms of Recall, Precision and F-measure. By introducing the F-isolines into the precision-recall space the 2-dimensional graphic representation reveals information about an additional, third evaluation measure. http://viper.ijs.si/types/scatter/",
       "static_image": "", 
       "action": "vipercharts_pr_space", 
       "visualization_view": "vipercharts_pr_space_view", 

workflows/vipercharts/package_data/widgets/8c94168c-9260-453a-bcbd-96bee7bc1236.json

@@ -10,7 +10,7 @@
       "interaction_view": "", 
       "has_progress_bar": false, 
       "image": "", 
-      "description": "", 
+      "description": "Scatter chart - ROC space. Provides an easy and intuitive visual performance evaluation in terms of Recall, Precision and F-measure. By introducing the F-isolines into the precision-recall space the 2-dimensional graphic representation reveals information about an additional, third evaluation measure. http://viper.ijs.si/types/scatter/",
       "static_image": "", 
       "action": "vipercharts_roc_space", 
       "visualization_view": "vipercharts_roc_space_view",