Fix some white-space issues.

Author: manthey

docs/controls.rst

@@ -154,5 +154,5 @@ Annotation Controls
 - **Pixelmap controls**
 
   **Left-click** on a superpixel to change its category to the current style group.
-  Holding **shift** and **left-drag** the mouse to change multiple superpixels as 
+  Holding **shift** and **left-drag** the mouse to change multiple superpixels as
   the mouse passed over them.

histomicsui/web_client/stylesheets/panels/drawWidget.styl

@@ -59,7 +59,7 @@
     .h-group-count-label
       display inline-block
       vertical-align top
-    
+
     .h-group-count-options
       display inline-block
       padding-left 5px

histomicsui/web_client/views/body/ImageView.js

@@ -221,10 +221,10 @@ var ImageView = View.extend({
                 // store a reference to the underlying viewer
                 this.viewer = this.viewerWidget.viewer;
                 this.viewer.interactor().removeAction(geo.geo_action.zoomselect);
-                
+
                 let currentOptions = this.viewer.interactor().options();
-                currentOptions.click.cancelOnMove = 10;  // a click can move up to 10 pixels before it is considered a move
-                this.viewer.interactor().options(currentOptions)
+                currentOptions.click.cancelOnMove = 10; // a click can move up to 10 pixels before it is considered a move
+                this.viewer.interactor().options(currentOptions);
 
                 this.imageWidth = this.viewer.maxBounds().right;
                 this.imageHeight = this.viewer.maxBounds().bottom;