[Number::Format] Release 1.52

[Bill W. <bi...@wa...>]

To make release 1.52 I think we need to do:

1. Add release date to CHANGES file
2. Update README file
3. Add a test case for the patch which was just committed

Will someone do #3?  I can do #1 and #2.  Is there anything else I'm missing?

This is the first time I've done a release via SourceForge for any
project so I need to learn how to do that.  I'm planning to upload the
older versions as a test.  Have any of you done that before?  Any tips
if so?

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