Reduce synchronized contention during name transliteration

[msbarry]

After fixing the expression matching performance improvement from #206, CPU utilization during pass 2 node handling dropped, but node processing time remained about the same (4 minutes on a 64 core machine). Digging into this it turns out to be that ICU4J transliteration is synchronized across threads. Setting --transliterate=false removes the thread contention and reduces overall processing time by 2-3 minutes.

See if there's a way to do ICU4J name transliteration without requiring global synchronization.