update to 1.5.0.20140528
- Use Unicode code point as a last ditch sort key for the candidates
- Fix bug in Unihan_Variants.txt, 同 is both simplified *and* traditional Chinese
- Update Unihan_Variants.txt from “2011-08-08 Unicode 6.1.0” to “2013-02-25 Unicode 6.3.0” and regenerate engine/chinese_variants.py