Update SOGoActiveSyncDispatcher.m

Add local memory pool so as to restrict memory consumption while waiting in the ping cycle.
Consumption can otherwise grow quite large while if the SOGoMaximumPingInterval and SOGoMaximumSyncInterval have been increased to allow for push ActiveSync.

ActiveSync/SOGoActiveSyncDispatcher.m

@@ -1999,7 +1999,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   NSMutableString *s;
   id collection;
   NSData *d;
-  
+  NSAutoreleasePool *pool;
 
   int i, j, heartbeatInterval, defaultInterval, internalInterval, status;
   
@@ -2061,6 +2061,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   // We enter our loop detection change
   for (i = 0; i < (heartbeatInterval/internalInterval); i++)
     {
+      pool = [[NSAutoreleasePool alloc] init];
       for (j = 0; j < [allFoldersID count]; j++)
         {
           collectionId = [allFoldersID objectAtIndex: j];
@@ -2085,7 +2086,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
               [foldersWithChanges addObject: collectionId];
             }
         }
-      
+      DESTROY(pool);
+
       if ([foldersWithChanges count])
         {
           [self logWithFormat: @"Change detected using Ping, we let the EAS client know to send a Sync."];