[longomatch] Disable resync for projects with a single video file

[Andoni Morales Alastruey <amorales src gnome org>]

commit a743ef2c5c80cce2b7bd8ffe9b8d5bd55a4d95c9
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Wed Apr 1 21:22:41 2015 +0200

    Disable resync for projects with a single video file

 LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs 
b/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
index 70acda7..fe55ec4 100644
--- a/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
+++ b/LongoMatch.GUI/Gui/Panel/ProjectsManagerPanel.cs
@@ -140,6 +140,8 @@ namespace LongoMatch.Gui.Panel
                        }
                        videoFileInfos.Clear ();
 
+                       resyncbutton.Sensitive = project.Description.FileSet.Count > 1;
+
                        foreach (MediaFile mf in project.Description.FileSet) {
                                VideoFileInfo vfi = new VideoFileInfo ();