[longomatch] Fix using old team templates

[Andoni Morales Alastruey <amorales src gnome org>]

commit 34ad0bf5d4d3596236ad260db130900abb2d3eb8
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Thu Apr 2 12:22:51 2015 +0200

    Fix using old team templates

 LongoMatch.Core/Store/Templates/Team.cs |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.Core/Store/Templates/Team.cs b/LongoMatch.Core/Store/Templates/Team.cs
index 0490e8f..47de614 100644
--- a/LongoMatch.Core/Store/Templates/Team.cs
+++ b/LongoMatch.Core/Store/Templates/Team.cs
@@ -248,6 +248,7 @@ namespace LongoMatch.Core.Store.Templates
 
        /* Keep this for backwards compatibility importing old project files */
        [Obsolete ("Use Team instead of TeamTeamplate in new code", true)]
+       [Serializable]
        public class TeamTemplate: Team
        {
        }