adding usernames to savedPreferences to save calls to twitter
Merge branch 'eric_username' of vnu:vnu/AndroExpense into eric_username
Fix Shared preferences in all the places of the project and a little bit of refactoring
Merge pull request #1 from vnu/eric_username

adding usernames to savedPreferences to save calls to twitter
Implemented the add workflow to create expense/income
Changign the android version back to 18
Merge branch 'master' into add_workflow