temp commits

working on fleshing out some todos for solo/duo
attempting to resolve errors after importing nirmals' changes

not sure if it's just that i had made some erros in project setup.
minor other tweaks to game.cass
continuing to import nirmal's changes
trying to resolve issues: absolute path in android manifest
changes merged in and it builds
Crude timer; starting external storage
BIG COMMIT: counts reps per exercise for a game, can store/retrieve values for game

basic framework for stats has been set up. much refinement needed
many todos involve making the exercises dynamically coded instead of
hard coded.
can pause the timer
note the system.out when you finish a deck
neuters the "next card" button when game is over (next step is to make
it switch activities
Added draft of chat session management and working revision of Roster display.