LibMythUI: Allow LoadInBackground to accept an optional message.

If used, the message will set the contents of the busy dialog message.  Bumps library API version, so you will need to make clean and recompile plugins.

mythtv/libs/libmythdb/mythversion.h

@@ -11,7 +11,7 @@
 /// Update this whenever the plug-in API changes.
 /// Including changes in the libmythdb, libmyth, libmythtv, libmythav* and
 /// libmythui class methods used by plug-ins.
-#define MYTH_BINARY_VERSION "0.25.20101601-1"
+#define MYTH_BINARY_VERSION "0.25.20101220-1"
 
 /** \brief Increment this whenever the MythTV network protocol changes.
  *

mythtv/libs/libmythui/mythscreentype.cpp

@@ -266,12 +266,12 @@ void MythScreenType::Load(void)
     // Virtual
 }
 
-void MythScreenType::LoadInBackground(void)
+void MythScreenType::LoadInBackground(QString message)
 {
     m_IsLoading = true;
     m_ScreenStack->AllowReInit();
 
-    OpenBusyPopup();
+    OpenBusyPopup(message);
 
     ScreenLoadTask *loadTask = new ScreenLoadTask(this);
     QThreadPool::globalInstance()->start(loadTask);

mythtv/libs/libmythui/mythscreentype.h

@@ -98,7 +98,7 @@ class MPUBLIC MythScreenType : public MythUIType
     virtual void Load(void);   // ONLY to be used for loading data, NO UI WORK
     virtual void Init(void);   // UI work to draw data loaded
 
-    void LoadInBackground(void);
+    void LoadInBackground(QString message = "");
     void ReloadInBackground(void);
 
     void OpenBusyPopup(QString message = "");