added addEntry(Entry) and getAllEntriesForUser(String) to DatabaseManager
stubbed out implementation of HomeActivity
laid out HomeActivity's view
created ListAdapter for list in Home Page
HomeActivity is now working
HomeActivity populates list with entries made by the current signed in user
Create README.md
implemented check in LoginActivity's OnCreate method to populate empty tables
Merge remote-tracking branch 'origin/ImplementEntryTableBranch' into ImplementEntryTableBranch