[gnome-documents] Fix some uninitialized variables runtime warnings

[Cosimo Cecchi <cosimoc src gnome org>]

commit fb2177f5408e03d651635980b0c89ff0c6420902
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Fri Apr 19 10:47:23 2013 -0400

    Fix some uninitialized variables runtime warnings

 src/manager.js | 5 +++--
 src/search.js  | 2 +-
 2 files changed, 4 insertions(+), 3 deletions(-)
---
diff --git a/src/manager.js b/src/manager.js
index 57267a2..41e136c 100644
--- a/src/manager.js
+++ b/src/manager.js
@@ -137,7 +137,7 @@ const BaseManager = new Lang.Class({
     },
 
     forEachItem: function(func) {
-        for (idx in this._items)
+        for (let idx in this._items)
             func(this._items[idx]);
     },
 
@@ -154,6 +154,7 @@ const BaseManager = new Lang.Class({
 
     processNewItems: function(newItems) {
         let oldItems = this.getItems();
+        let idx;
 
         for (idx in oldItems) {
             let item = oldItems[idx];
@@ -213,7 +214,7 @@ const BaseModel = new Lang.Class({
         }
 
         let items = this._manager.getItems();
-        for (idx in items) {
+        for (let idx in items) {
             let item = items[idx];
             iter = this.model.append();
             this.model.set(iter,
diff --git a/src/search.js b/src/search.js
index c9c2193..a122c8b 100644
--- a/src/search.js
+++ b/src/search.js
@@ -449,7 +449,7 @@ const SourceManager = new Lang.Class({
         let sources = this.getItems();
         let filters = [];
 
-        for (idx in sources) {
+        for (let idx in sources) {
             let source = sources[idx];
             if (!source.builtin)
                 filters.push(source.getFilter());