[savedObjects] change the number mappings to be 'long'

Since JavaScript numbers can't actually be integers we don't really
care about the difference between int and long, but since the long
is the default type it makes things more frictionless

Original
commit: 1b9a646
author: @spalger

src/plugins/kibana/public/dashboard/services/_saved_dashboard.js

@@ -47,12 +47,12 @@ define(function (require) {
     // if type:dashboard has no mapping, we push this mapping into ES
     SavedDashboard.mapping = {
       title: 'string',
-      hits: 'integer',
+      hits: 'long',
       description: 'string',
       panelsJSON: 'string',
       optionsJSON: 'string',
       uiStateJSON: 'string',
-      version: 'integer',
+      version: 'long',
       timeRestore: 'boolean',
       timeTo: 'string',
       timeFrom: 'string',

src/plugins/kibana/public/discover/saved_searches/_saved_search.js

@@ -33,10 +33,10 @@ define(function (require) {
     SavedSearch.mapping = {
       title: 'string',
       description: 'string',
-      hits: 'integer',
+      hits: 'long',
       columns: 'string',
       sort: 'string',
-      version: 'integer'
+      version: 'long'
     };
 
     SavedSearch.searchSource = true;

src/plugins/kibana/public/visualize/saved_visualizations/_saved_vis.js

@@ -48,7 +48,7 @@ define(function (require) {
       uiStateJSON: 'string',
       description: 'string',
       savedSearchId: 'string',
-      version: 'integer'
+      version: 'long'
     };
 
     SavedVis.searchSource = true;