Trying to bind the Service to multiple Activities

Trying to bind the FreeTimeService to the ImportCalendarActivity in
addition to the MainActivity. Doesn't'work.

Consider subclassing the Application class, and using that subclass as
an entry point to our application (and bind the FreeTimeService to this
subclass) - I've created the FreeTimeApp as the Application subclass.

References:

http://stackoverflow.com/questions/2621395/more-efficient-way-of-updating-ui-from-service-than-intents/2622473#2622473

http://www.devahead.com/blog/2011/06/extending-the-android-application-class-and-dealing-with-singleton/