Collect and dispatch NYT user data

[mzhilyaev]

Collection of NYT user data proceeds as follows:

• Controller processes history on start-up and idle-daily events
• Before calling to resubmit history, the controller will execute _fetchOnSubmit() call
• This call is suppose to pre-fetch needed info in the background
• In particular, NYTUtils.fetchNYTUserData() will be called by _fetchOnSubmit()
• NYTUtils.fetchNYTUserData will issue an XHR request to nytimes.com to collect user info
• when the response arrives, it gets timestamped and augmented with article-visit count from "nyt-m" cookie
• the resulting object is cached in storage
• when dispatcher makes a payload object it collects NYT user data from NYTUtils.getNYTUserData() and attaches it to the payload.