Prepare to migrate your legacy workflow or Hybrid App.
Directory-wide comparison program, such as Beyond Compare (http://www.scootersoftware.com/); ideally, a version that supports both comparison and merging.
JavaScript syntax checking environment, such as Eclipse-JEE; or the Chrome or FireFox debug console into which you can load the HTML (which brings in all the JavaScript files). Such a tool can help you identify typing errors, and errors arising from the "hwc" namespace identifier changes.