Added TransactionModel

Added transaction model to replace withdrawal model
Calculate period total based on transaction type
Fixed bugs, removed big withdrawal button
Added some formating and refactoring
Added withdraw/deposit icons
Changed logos
Live tiles now added

Added live tile that takes the default budgets current amount and days
left.
Added style to flip tyle
Added app bar to budget add
Added app bar to addedittransaction
Merge branch 'Livetile' of https://github.com/atkay/budgetHappens into Livetiles

Conflicts:
	budgetHappens/AddBudget.xaml
	budgetHappens/AddBudget.xaml.cs