fix(journal): do not close search on external click

This commit fixes a usability issue that would automatically close the Journal Search modal when a
user clicked outside of it.  Users often clicked outside the search modal to try and dismiss a
dropdown, but ended up dismissing the entire modal.  Operating on the princple of least surprise
(and least frustration), the dismiss-on-external-click has been removed.

Closes #1617.

client/src/modules/journal/journal.js

@@ -382,9 +382,6 @@ function JournalController(Journal, Sorting, Grouping,
 
         // @TODO investigate why footer totals aren't updated automatically on data change
         vm.gridApi.core.notifyDataChange(uiGridConstants.dataChange.ALL);
-
-        // try to unfold groups
-        // try { grouping.unfoldAllGroups(); } catch (e) {}
       })
       .catch(errorHandler)
       .finally(toggleLoadingIndicator);

client/src/modules/journal/journalConfig.service.js

@@ -13,6 +13,7 @@ function JournalConfigService(Modal) {
     return Modal.open({
       templateUrl: 'modules/journal/modals/search.modal.html',
       controller:  'JournalSearchModalController as ModalCtrl',
+      backdrop : 'static',
       resolve : {
         filters : function () { return filters; }
       }