[blam] Item: Use the first link as the ID if it's null

[Carlos Martín Nieto <cmartin src gnome org>]

commit 500ce16e7bdb8d198fda623ce6168974d48cbae5
Author: Carlos Martín Nieto <carlos cmartin tk>
Date:   Sat Sep 18 21:48:08 2010 +0100

    Item: Use the first link as the ID if it's null

 src/Item.cs |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/src/Item.cs b/src/Item.cs
index d981df4..72ba0b0 100644
--- a/src/Item.cs
+++ b/src/Item.cs
@@ -42,6 +42,10 @@ namespace Imendio.Blam {
 
         public Item(SyndicationItem item) : base(item)
         {
+            if(this.Id == null){
+                this.Id = this.Links[0].Uri.ToString();
+            }
+
             if(item.Summary != null && item.Summary.Text != ""){
                 this.exposed_text = item.Summary;
             }