Started work on #1, using wget module to pulldown the data dumps
Converted download manager method to use promises rather than callbacks
- added the Q promise library as a dependency
Added the processing of the dumps into the chained resolve promise
Created donloadFiles that chains a list of urls for downloading
Converted most callbacks in application to use promises
- this stremlines logic and will make it easier to add asyc calls later
- also added q-io as a dependency to handle async write