created branch for database
Merge branch 'UI_changes' into database
Added DatabaseHelper.java
fixed typos
added functionality to add item to inventory/grocery list
got rid of master key for inventory and grocery list
Merge branch 'master' of https://github.com/jsjones27/kiss into database
fixed typos
added functionality to retrieve items and lists from the database
added functionality to update and delete items
added test case to MainActivity.java and fixed a few errors
Merge pull request #5 from jsjones27/database

Database