Add empty 4.2.10 sql upgrade script, to avoid warnings during upgrade.
Merge pull request #21 from mlutfy/fixsql4.2.10

Add empty 4.2.10 sql upgrade script, to avoid warnings during upgrade.
Bump versions to 4.2.10. (this was already OK in the tar.gz because of distmaker, but had not been committed to git)
Merge pull request #22 from mlutfy/4.2-version-bump-10

Bump versions to 4.2.10.
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