change some things to resolve issues with the data binding

src/Banquale/Banquale/AppShell.xaml

@@ -6,11 +6,6 @@
     xmlns:views="clr-namespace:Banquale.Views"
     Shell.FlyoutBehavior="Disabled">
 
-    <!--<ShellContent
-            	Title="Connection"
-            	ContentTemplate="{DataTemplate views:ConnectionPage}"
-            	Route="connection" />-->
-
 
         <ShellContent ContentTemplate="{DataTemplate views:ConnectionPage}"
                       Route="connection"/>

src/Banquale/Banquale/Model/Manager.cs

@@ -14,11 +14,11 @@ namespace Banquale.Model
 
         public IPersistenceManager Persistence { get; set; }
 
-		public Manager(IPersistenceManager persistance) {
+		public Manager(IPersistenceManager persistence) {
 
             TransactionsList = new List<Transactions>();
             CustomersList = new List<Customer>();
-			Persistence = persistance;
+			Persistence = persistence;
 
 		}