diff --git a/README.md b/README.md
index 28aae1c9..757ea619 100644
--- a/README.md
+++ b/README.md
@@ -68,9 +68,8 @@ When contributing, please attempt to match the code style already in the codebas
 
 When fixing bugs and adding features, when appropriate please also:
 
-* Update changelog.txt
-* Add/update related unit tests
 * Update related doc comments
+* Add/update related unit tests
 
 If you're new to the project, check out our [good first bug](https://github.com/openseadragon/openseadragon/issues?labels=good+first+bug&page=1&state=open) issues for some places to dip your toe in the water.
 
diff --git a/changelog.txt b/changelog.txt
index 9e696ade..e87729b5 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -9,6 +9,10 @@ OPENSEADRAGON CHANGELOG
 * Keyboard handling is now done in the viewer rather than navigator (#46)
 * Additional navigator fixes (#46)
 * Fixed an error in EventHandler.removeHandler() (#48)
+* Better requestAnimationFrame detection on older Firefox (#103)
+* More efficient navigator loading (#115)
+* Sometimes tiles wouldn't resolve if you used the blendTime option; fixed. (#95)
+* You can now choose to have previous and next buttons wrap using the config.navPrevNextWrap. (#114)
 
 0.9.127:
 
diff --git a/src/button.js b/src/button.js
index 88c73274..32e15950 100644
--- a/src/button.js
+++ b/src/button.js
@@ -57,7 +57,7 @@ $.ButtonState = {
  * @param {String} options.srcRest URL of image to use in 'rest' state
  * @param {String} options.srcGroup URL of image to use in 'up' state
  * @param {String} options.srcHover URL of image to use in 'hover' state
- * @param {String} options.srcDown URL of image to use in 'domn' state
+ * @param {String} options.srcDown URL of image to use in 'down' state
  * @param {Element} [options.element] Element to use as a container for the 
  *  button.
  * @property {String} tooltip Provides context help for the button we the
@@ -65,7 +65,7 @@ $.ButtonState = {
  * @property {String} srcRest URL of image to use in 'rest' state
  * @property {String} srcGroup URL of image to use in 'up' state
  * @property {String} srcHover URL of image to use in 'hover' state
- * @property {String} srcDown URL of image to use in 'domn' state
+ * @property {String} srcDown URL of image to use in 'down' state
  * @property {Object} config Configurable settings for this button. DEPRECATED.
  * @property {Element} [element] Element to use as a container for the 
  *  button.
diff --git a/src/drawer.js b/src/drawer.js
index 72c932d5..833d1fe6 100644
--- a/src/drawer.js
+++ b/src/drawer.js
@@ -709,8 +709,7 @@ function updateTile( drawer, drawLevel, haveDrawn, x, y, level, levelOpacity, le
     );
 
     if ( tile.loaded ) {
-        
-        drawer.updateAgain = blendTile(
+        var needsUpdate = blendTile(
             drawer,
             tile, 
             x, y,
@@ -718,6 +717,10 @@ function updateTile( drawer, drawLevel, haveDrawn, x, y, level, levelOpacity, le
             levelOpacity, 
             currentTime 
         );
+
+        if ( needsUpdate ) {
+            drawer.updateAgain = true;
+        }
     } else if ( tile.loading ) {
         // the tile is already in the download queue 
         // thanks josh1093 for finally translating this typo
diff --git a/src/openseadragon.js b/src/openseadragon.js
index 6ed7c3af..8e3b41be 100644
--- a/src/openseadragon.js
+++ b/src/openseadragon.js
@@ -258,6 +258,11 @@
   *     these paths, prefer setting the option.prefixUrl rather than overriding 
   *     every image path directly through this setting.
   *
+  * @param {Boolean} [options.navPrevNextWrap=false]
+  *     If the 'previous' button will wrap to the last image when viewing the first
+  *     image and if the 'next' button will wrap to the first image when viewing
+  *     the last image.
+  *
   * @returns {OpenSeadragon.Viewer}
   */
 window.OpenSeadragon = window.OpenSeadragon || function( options ){
@@ -595,6 +600,7 @@ window.OpenSeadragon = window.OpenSeadragon || function( options ){
                     DOWN:   'next_pressed.png'
                 }
             },
+            navPrevNextWrap:        false,
 
             //DEVELOPER SETTINGS
             debugMode:              false,
diff --git a/src/viewer.js b/src/viewer.js
index 0ec5b19e..624431e4 100644
--- a/src/viewer.js
+++ b/src/viewer.js
@@ -346,6 +346,10 @@ $.Viewer = function( options ) {
         beginControlsAutoHide( _this );
     } );    // initial fade out
 
+    if(this.navPrevNextWrap){
+        this.previousButton.enable();
+    }
+
 };
 
 $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype, {
@@ -523,8 +527,11 @@ $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype,
 
 
     /**
+     * Shows or hides the controls (e.g. the default navigation buttons).
+     * 
      * @function
-     * @name OpenSeadragon.Viewer.prototype.setDashboardEnabled
+     * @name OpenSeadragon.Viewer.prototype.setControlsEnabled
+     * @param {Boolean} true to show, false to hide.
      * @return {OpenSeadragon.Viewer} Chainable.
      */
     setControlsEnabled: function( enabled ) {
@@ -1019,7 +1026,9 @@ $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype,
             if( this.nextButton ){
                 if( ( this.tileSources.length - 1 ) === page  ){
                     //Disable next button
-                    this.nextButton.disable();
+                    if(!this.navPrevNextWrap){
+                        this.nextButton.disable();
+                    }
                 } else {
                     this.nextButton.enable();
                 }
@@ -1029,7 +1038,9 @@ $.extend( $.Viewer.prototype, $.EventHandler.prototype, $.ControlDock.prototype,
                     //Enable previous button
                     this.previousButton.enable();
                 } else {
-                    this.previousButton.disable();
+                    if(!this.navPrevNextWrap){
+                        this.previousButton.disable();
+                    }
                 }
             }
 
@@ -1145,7 +1156,10 @@ function openTileSource( viewer, source ) {
             sizeRatio:   _this.navigatorSizeRatio,
             height:      _this.navigatorHeight,
             width:       _this.navigatorWidth,
-            tileSources: _this.tileSources,
+            // By passing the fully parsed source here, the navigator doesn't
+            // have to load it again. Additionally, we don't have to call
+            // navigator.open, as it's implicitly called in the ctor.
+            tileSources: source,
             tileHost:    _this.tileHost,
             prefixUrl:   _this.prefixUrl,
             overlays:    _this.overlays,
@@ -1210,10 +1224,6 @@ function openTileSource( viewer, source ) {
     }
     VIEWERS[ _this.hash ] = _this;
 
-    if( _this.navigator ){
-        _this.navigator.open( source );
-    }
-
     _this.raiseEvent( 'open', { source: source, viewer: _this } );
 
     return _this;
@@ -1623,12 +1633,18 @@ function onFullPage() {
 
 function onPrevious(){
     var previous = THIS[ this.hash ].sequence - 1;
+    if(this.navPrevNextWrap && previous < 0){
+        previous += this.tileSources.length;
+    }
     this.goToPage( previous );
 }
 
 
 function onNext(){
     var next = THIS[ this.hash ].sequence + 1;
+    if(this.navPrevNextWrap && next >= this.tileSources.length){
+        next = 0;
+    }
     this.goToPage( next );
 }