each-* will now check for null on null array [Closes #110]

@@ -339,17 +339,18 @@ Rivets.binders =
 
       @iterated = []
 
-      for item in collection
-        data = {}
-        data[n] = m for n, m of @view.models
-        data[@args[0]] = item
-        itemEl = el.cloneNode true
-        if @iterated.length > 0
-          previous = @iterated[@iterated.length - 1].els[0]
-        else
-          previous = @marker
-        @marker.parentNode.insertBefore itemEl, previous.nextSibling ? null
-        @iterated.push rivets.bind itemEl, data
+      if collection
+        for item in collection
+          data = {}
+          data[n] = m for n, m of @view.models
+          data[@args[0]] = item
+          itemEl = el.cloneNode true
+          if @iterated.length > 0
+            previous = @iterated[@iterated.length - 1].els[0]
+          else
+            previous = @marker
+          @marker.parentNode.insertBefore itemEl, previous.nextSibling ? null
+          @iterated.push rivets.bind itemEl, data
 
   "class-*": (el, value) ->
     elClass = " #{el.className} "