Fixed few bugs related to login/logout

* Pressing the logout button now brings the setup page up again
* Removing a server and readding one of which the hash of the address
  has a higher value than the previous one does no longer cause the
  application to request a login each time you open it.
* The method for deciding if the user is in setup has been changed. It
  now checks if a page in the pageStack has the property _isSetupPage,
  which works better than manually keeping track of state.

qml/Utils.js

@@ -32,5 +32,8 @@ function itemModelImageUrl(baseUrl, itemId, tag, type, options) {
         }
     }
     return baseUrl + "/Items/" + itemId + "/Images/" + type + "?tag=" + tag + extraQuery
-
+}
+
+function usePortraitCover(itemType) {
+    return ["Series", "Movie"].indexOf(itemType) >= 0
 }

qml/harbour-sailfin.qml

@@ -9,7 +9,6 @@ import "pages"
 
 ApplicationWindow {
 	id: appWindow
-	property bool isInSetup: false
     property bool _hasInitialized: false
     // The global mediaPlayer instance
     readonly property MediaPlayer mediaPlayer: _mediaPlayer
@@ -29,7 +28,14 @@ ApplicationWindow {
 		target: ApiClient
 		onNetworkError: errorNotification.show("Network error: " + error)
 		onConnectionFailed: errorNotification.show("Connect error: " + error)
-		//onConnectionSuccess: errorNotification.show("Success: " + loginMessage)
+        //onConnectionSuccess: errorNotification.show("Success: " + loginMessage)
+        onSetupRequired: {
+            var isInSetup = pageStack.find(function (page) { return typeof page._isSetupPage !== "undefined" }) !== null
+            console.log("Is in setup: " + isInSetup)
+            if (!isInSetup) {
+                pageStack.replace(Qt.resolvedUrl("pages/setup/AddServerPage.qml"), {"backNavigation": false});
+            }
+        }
 	}
 
     MediaPlayer {
@@ -42,12 +48,7 @@ ApplicationWindow {
 			Connections {
 				target: ApiClient
                 // Replace the MainPage if no server was set up.
-				onSetupRequired: {
-					if (!isInSetup) {
-						isInSetup = true;
-                        pageStack.replace(Qt.resolvedUrl("pages/setup/AddServerPage.qml"), {"backNavigation": false});
-					}
-				}
+
 			}
 			onStatusChanged: {
                 if (status == PageStatus.Active && !_hasInitialized) {

qml/pages/MainPage.qml

@@ -73,7 +73,6 @@ Page {
                         clip: true
                         height: {
                             if (count > 0) {
-                                console.log(collectionType)
                                 if (["tvshows", "movies"].indexOf(collectionType) == -1) {
                                     Constants.libraryDelegateHeight
                                 } else {
@@ -99,7 +98,7 @@ Page {
                                 /*model.imageTags["Primary"] ? ApiClient.baseUrl + "/Items/" + model.id
                                                                  + "/Images/Primary?maxHeight=" + height + "&tag=" + model.imageTags["Primary"]
                                                                : ""*/
-                            landscape: ["Series", "Movie"].indexOf(model.type) == -1
+                            landscape: !Utils.usePortraitCover(model.type)
 
                             onClicked: {
                                 pageStack.push(Qt.resolvedUrl("DetailPage.qml"), {"itemId": model.id})

qml/pages/setup/AddServerPage.qml

@@ -14,6 +14,7 @@ Dialog {
 	readonly property string address: serverSelect.currentItem._address
 	readonly property bool addressCorrect: serverSelect.currentIndex > 0 || manualAddress.acceptableInput
 	readonly property string serverName: serverSelect.currentItem._name
+    readonly property bool _isSetupPage: true
 	
 	
 	acceptDestination: AddServerConnectingPage {

qml/pages/setup/LoginDialog.qml

@@ -35,7 +35,7 @@ Dialog {
 			onAuthenticatedChanged: {
 				if (ApiClient.authenticated) {
 					console.log("authenticated!")
-                    pageStack.replaceAbove(pageStack.previousPage(firstPage), Qt.resolvedUrl("../MainPage.qml"))
+                    pageStack.replaceAbove(null, Qt.resolvedUrl("../MainPage.qml"))
 				}
 			}
 			onAuthenticationError: {

src/credentialmanager.cpp

@@ -34,6 +34,14 @@ void FallbackCredentialsManager::get(const QString &server, const QString &user)
 
 void FallbackCredentialsManager::remove(const QString &server, const QString &user) {
     m_settings.remove(urlToGroupName(server) + "/users/" + user);
+
+    // Check if only the /address key is left. In this case, the server section should be removed.
+    m_settings.beginGroup(urlToGroupName(server));
+    int childGroupsCount = m_settings.childGroups().count();
+    m_settings.endGroup();
+    if (childGroupsCount == 0) {
+        m_settings.remove(urlToGroupName(server));
+    }
 }
 
 void FallbackCredentialsManager::listServers() const {

translations/harbour-sailfin.ts

@@ -109,26 +109,31 @@
     </message>
     <message>
         <source>Login</source>
+        <extracomment>Dialog action</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Credentials</source>
+        <extracomment>Section header for entering username and password</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Username</source>
+        <extracomment>Label placeholder for username field</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Password</source>
-        <translation type="unfinished"></translation>
-    </message>
-    <message>
-        <source>password</source>
+        <extracomment>Label placeholder for password field</extracomment>
         <translation type="unfinished"></translation>
     </message>
     <message>
         <source>Login message</source>
+        <extracomment>Message shown on login, configured by the server owner. Some form of a MOTD</extracomment>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Invalid username or password</source>
         <translation type="unfinished"></translation>
     </message>
 </context>
@@ -207,6 +212,10 @@
         <source>Log out</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Logging out</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>UnsupportedDetails</name>