Fixed PHP-859: MongoCollection::save() with options crashes.
Merged pull request #491
Fixed PHP-858: Crash when extending Mongo and MongoClient classes and not calling its constructor
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Merged Pull Request #490

* pull-request/490:
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  Fixed PHP-858: Crash when extending Mongo and MongoClient classes and not calling its constructor
Fixed PHP-872: Driver should prevent \0 characters in keys, collection and database names.
Merged pull request #495
BUMP 1.4.2
Windows doesn't have poll, so keep the old select branch around for it.

Windows has WSAPoll instead of poll(), but that's broken so we can't use it. I
hate that Mickey Mouse OS.
Merge branch '1.4.2-windows-fixes' into v1.4
Back to -dev.