Eliminate some duplicate entries. If the e-mail addresses are the same,

Eliminate some duplicate entries.  If the e-mail addresses are the same,
it's an obvious duplicate; if the addresses are in the same domain, it's
almost certainly a duplicate; if the addresses are in different domains,
but one company bought some of the product line for another company, we
assume it's a duplicate (e.g., we presume Martijn Schipper moved from
Intersil to GlobespanVirata when Intersil sold the PRISM 802.11 chipset
lines to GlobespanVirata, although he now appears to be at Magna Carta).

This still leaves Joost Yervante Damad, Thomas Dreibholz, and Thomas
Palmer as duplicates - probably the same people, but I'll ask The Great
Gazoogle a few questions first.

git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@28631 f5534014-38df-0310-8fa8-9805f1628bb7