update frontend permission choices to just: Private or Public (others can read)

resources/frontend_client/app/query_builder/saver.react.js

@@ -87,8 +87,7 @@ var Saver = React.createClass({
         // TODO: hard coding values :(
         var privacyOptions = [
             (<option key="0" value={0}>Private</option>),
-            (<option key="1" value={1}>Others can read</option>),
-            (<option key="2" value={2}>Others can modify</option>)
+            (<option key="1" value={1}>Public (others can read)</option>)
         ];
 
         var formError;

resources/frontend_client/app/services.js

@@ -204,10 +204,7 @@ CorvusServices.service('CorvusCore', ['$resource', 'User', function($resource, U
         'name': 'Private'
     }, {
         'id': 1,
-        'name': 'Others can read'
-    }, {
-        'id': 2,
-        'name': 'Others can read and modify'
+        'name': 'Public (others can read)'
     }];
 
     this.permName = function(permId) {