Split the AddBudgetActivity into two activities for adding and editing
Update layout
Merge branch 'master' of github.com:coldstar96/cse403 into split-add-budget-activity

Conflicts:
	src/com/example/budgetmanager/AddBudgetActivity.java
Add class comment to the abstract class
Merge branch 'master' of github.com:coldstar96/cse403 into split-add-budget-activity
Fix tests
Merge pull request #145 from coldstar96/split-add-budget-activity

Split the AddBudgetActivity into two activities for adding and editing