added PersistenceService interface
added junit tests for PersistenceService
fixed several errors
fixed test error and added report option
Added base files for Persistence component
Delete Stock.java
Delete User.java
fixed error with test option and added report option
Add StockTickerService and AuthorizationService interfaces
Add StockQuote class
Update data classes

add loggedIn filed to User
Add UserAuthorization class and stubs
Add StockTicker class and stubs
removed report option
Update gitignore

do not track result.txt or result.xml
Add test stubs for StockTicker and UserAuthorization
Added the @Override annotation on all interface implementation methods
Changed import com.stocksticker.* to individual class import statements
renamed test methods and added several new ones
removed redundant cast on getTrackedStocks return statement