CB-9745 Camera plugin docs should be generated from the source

Moved docs to jsdocs comments in the code, removed redundancy.
Moved Quirks and extra examples to errata sections of the docs TEMPLATE.md, linked the jsdoc comments to these sections.
Added dependencies to common plugin docs template and husky (precommit hook to regen the docs automatically).
Added gen-docs command to re-generate the docs.
Extended TOC manually [to include classes containing only one member](https://github.com/jsdoc2md/jsdoc-to-markdown/issues/34) (CameraPopoverHandle and CameraPopoverOptions).
Extended the docs via DMD template to include "Installation", "How to contribute" and "Docs are generated" warning.

github: close #129

www/CameraPopoverOptions.js

@@ -21,16 +21,31 @@
 
 var Camera = require('./Camera');
 
-/**
- * Encapsulates options for iOS Popover image picker
+/** 
+ * @namespace navigator
  */
-var CameraPopoverOptions = function(x,y,width,height,arrowDir){
+
+/**
+ * iOS-only parameters that specify the anchor element location and arrow
+ * direction of the popover when selecting images from an iPad's library
+ * or album.
+ * Note that the size of the popover may change to adjust to the
+ * direction of the arrow and orientation of the screen.  Make sure to
+ * account for orientation changes when specifying the anchor element
+ * location.
+ * @module CameraPopoverOptions
+ * @param {Number} [x=0] - x pixel coordinate of screen element onto which to anchor the popover.
+ * @param {Number} [y=32] - y pixel coordinate of screen element onto which to anchor the popover.
+ * @param {Number} [width=320] - width, in pixels, of the screen element onto which to anchor the popover.
+ * @param {Number} [height=480] - height, in pixels, of the screen element onto which to anchor the popover.
+ * @param {module:Camera.PopoverArrowDirection} [arrowDir=ARROW_ANY] - Direction the arrow on the popover should point.
+ */
+var CameraPopoverOptions = function (x, y, width, height, arrowDir) {
     // information of rectangle that popover should be anchored to
     this.x = x || 0;
     this.y = y || 32;
     this.width = width || 320;
     this.height = height || 480;
-    // The direction of the popover arrow
     this.arrowDir = arrowDir || Camera.PopoverArrowDirection.ARROW_ANY;
 };