[longomatch] Make PenaltyCard serializable

[Andoni Morales Alastruey <amorales src gnome org>]

commit b9435b2b82b9df6c00d7d00a703b597060eb69e7
Author: Andoni Morales Alastruey <ylatuya gmail com>
Date:   Wed Aug 27 14:16:07 2014 +0200

    Make PenaltyCard serializable

 LongoMatch.Core/Store/PenaltyCard.cs |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/LongoMatch.Core/Store/PenaltyCard.cs b/LongoMatch.Core/Store/PenaltyCard.cs
index fde581d..95c116a 100644
--- a/LongoMatch.Core/Store/PenaltyCard.cs
+++ b/LongoMatch.Core/Store/PenaltyCard.cs
@@ -21,6 +21,7 @@ using LongoMatch.Interfaces;
 
 namespace LongoMatch.Store
 {
+       [Serializable]
        public class PenaltyCard: AnalysisEventCategory
        {
                public PenaltyCard ()