Fix T-addresses not showing up in dropdown (#169)

* Add upto 20 addresses to the taddr dropdown

* View All Addresses dialog box

* Add balances to view all addresses

* Add export all keys

* Add translations + copy address

src/settings.h

@@ -82,6 +82,7 @@ public:
     static const QString txidStatusMessage;
     
     static void saveRestore(QDialog* d);
+    static void saveRestoreTableHeader(QTableView* table, QDialog* d, QString tablename) ;
 
     static void openAddressInExplorer(QString address);
     static void openTxInExplorer(QString txid);