Updates gitignore file.

Ignores concatenated pebble file, .lock-waf file and node_modules.
Change maximum distance from 8,000 KM to 1,000 KM

Rename app from sat_alert to Sat Alert.

Lowered polling frequency to 20 seconds
Pulls out SpaceObject and SpaceObject Factory into models folder.
Moves libraries to libraries folder.
Refactors app into MVC
Add conditional check to only update view if the satellite has changed.
Refactor to account for changes in satellite name.

If satellite name changes we update the view.
Refactor controller to leverage User.getlocation callback.

Add default values to satellite attributes.

Refactor view messages.

Slowed polling to every 60 seconds
Merge pull request #22 from hwhelchel/refactor-mvc

Refactor mvc