[empathy] Add a comment about the IndividualManager's general memory management policy.

[Travis Reitter <treitter src gnome org>]

commit 57ad2410667935dfdab6d58fb09594ae94f83e05
Author: Travis Reitter <treitter gmail com>
Date:   Fri Jul 9 18:07:13 2010 -0700

    Add a comment about the IndividualManager's general memory management policy.

 libempathy/empathy-individual-manager.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/libempathy/empathy-individual-manager.c b/libempathy/empathy-individual-manager.c
index 9d35533..5cd0063 100644
--- a/libempathy/empathy-individual-manager.c
+++ b/libempathy/empathy-individual-manager.c
@@ -43,6 +43,12 @@
 #include "empathy-debug.h"
 
 #define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyIndividualManager)
+
+/* This class doesn't store or ref any of the individuals, since they're already
+ * stored and referenced in the aggregator.
+ *
+ * This class merely forwards along signals from the aggregator and individuals
+ * and wraps aggregator functions for other client code. */
 typedef struct
 {
   FolksIndividualAggregator *aggregator;