Switching to file storage instead of Shared Preferences
Adding weekly summary. Currently must be debugging to access through getSummary, but this should be saved into a file every time the app closes so it's accessable just by connecting a cable to the Gear.
Creating a weekly log file and savin to it any time changes are made to stats for an exercise.
Fixing a bug where the values for reps/weight would drop to 0 when making the first edit of the activity for that week. Now it starts properly at last week's value.