* Don't require a jQuery element with a specific attribute
to record thanks. Instead pass in the thanked ID directly.
* In Flow, don't override the cookieName static property,
instead pass it in as an argument.
Change the static property (effectively a global) prevents
us from having multiple types of thanks on the same page.
Change-Id: Ia569f8636f070f2af69f89d7da66c9a6f9821d24
Added two new tests: thanked cookie and gets user gender. First uses jQuery cookies and second uses Sinon fake server
Bug: T160267
Change-Id: I8f5dad9c90e930d557e86acb4b175ec549849e7a
