Support any number of millisecond digits. Also leap seconds.

[swankjesse]

Necessary to parse the RFC 3339 examples.
https://www.ietf.org/rfc/rfc3339.txt

[cowtowncoder]

Excellent, thank you for the fix! I'll have to see how to backport to 2.6 (since I think it'll make sense there, instead of having to wait), but will be happy to merge.

One quick question: have I yet asked for an CLA? We need one before the first commit, but that's good for all further contributions for jackson projects. Individual CLA is here:

https://github.com/FasterXML/jackson/blob/master/contributor-agreement.pdf

but there's also corporate cla if companies find it easier to do one for bunch of contributors. I assume individual would work well here.

Would it be possible to print, fill+sign, scan and email that to info at fasterxml dot com.
Apologies for the hassle, but you know the drill. :)