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.cpp

@@ -244,17 +244,24 @@ AddressBook::AddressBook() {
 void AddressBook::readFromStorage() {
     QFile file(AddressBook::writeableFile());
 
-    if (!file.exists()) {
-        return;
+    if (file.exists()) {
+        allLabels.clear();
+        file.open(QIODevice::ReadOnly);
+        QDataStream in(&file);    // read the data serialized from the file
+        QString version;
+        in >> version >> allLabels; 
+
+        file.close();
     }
 
-    allLabels.clear();
-    file.open(QIODevice::ReadOnly);
-    QDataStream in(&file);    // read the data serialized from the file
-    QString version;
-    in >> version >> allLabels; 
-
-    file.close();
+    // Special. 
+    // Add the default ZecWallet donation address if it isn't already present
+    QList<QString> allAddresses;
+    std::transform(allLabels.begin(), allLabels.end(), 
+        std::back_inserter(allAddresses), [=] (auto i) { return i.second; });
+    if (!allAddresses.contains(Settings::getDonationAddr(true))) {
+        allLabels.append(QPair<QString, QString>("ZecWallet donation", Settings::getDonationAddr(true)));
+    }
 }
 
 void AddressBook::writeToStorage() {