Eliot Miranda uploaded a new version of Collections to project Spur:
http://source.squeak.org/spur/Collections-nice.569.mcz

==================== Summary ====================

Name: Collections-nice.569
Author: eem
Time: 19 May 2014, 3:42:13.548 pm
UUID: 4826f1f2-4c19-4a50-bfc9-5a5edc6566c8
Ancestors: Collections-nice.569

Collections-nice.569 patched for Spur by SpurBootstrapMonticelloPackagePatcher Cog-tpr.153

Add NullStream>>ensureCr

=============== Diff against Collections-nice.569 ===============