Changes since Network Expect 0.20:

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r409 | elparis | 2013-07-17 17:58:48 -0400 (Wed, 17 Jul 2013) | 8 lines

* Make things work with libwireshark from Wireshark 1.10. Minor API
changes.

* When creating a Tcl "packet" object, use the PCAP datalink type
instead of the Wiretap datalink type (bug).

* Bump version number to 0.21 in preparation for release.

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