turquoiseowl/i18n — pull request #139 by jimhorvath (2014-05-30 23:20:40+00:00)
Title: create the default QuickUrlExclusionFilter Regex with RegexOption.Compiled

Description of improvement found from a quick googling:

http://stackoverflow.com/questions/513412/how-does-regexoptions-compiled-work

This will result in slower execution of the UrlLocalizer static constructor but long-term performance benefits at runtime should outweigh that handily.