Recurring (#131)

* Save created recurring info

* Add to confirm dialog

* Update RPI at confirm

* Make singleton

* Add history to recurring payments

* USD/ZEC switch

* Fix check state

* recurring item serialization

* Add recurring payments to file

* Refactor

* Address view model

* Wire up dialog

* Update windows installer logos

* Store all payments in the store

* Save table geometry

* Add recurring payments view

* Add deletion

* Add recurring payment execution

* Add donation address to address book

* Add multiple payment handling

* Disable recurring for multiple payments

* Handle pay last

* Handle pay all

* Reomve frequency

* Enable recurring payments only for testnet

* For testing, allow payments in 5 min intervals

* Fix request money amounts

src/addressbook.h

@@ -10,9 +10,9 @@ class AddressBookModel : public QAbstractTableModel {
 public:
     AddressBookModel(QTableView* parent);
     ~AddressBookModel();
-
-    void addNewLabel(QString label, QString addr);
-    void removeItemAt(int row);
+                            
+    void                    addNewLabel(QString label, QString addr);
+    void                    removeItemAt(int row);
     QPair<QString, QString> itemAt(int row);
 
     int      rowCount(const QModelIndex &parent) const;