* whitelistscope:
Common: Rename kWhitelistDirsKey/WhitelistDirs to kWhitelistRegexKey/WhitelistRegex
santad: NSRegularExpression doesn't work with XPC.
santactl/sync: Sync whitelist regex
santad: In a rule vs scope, rule wins.
santad: Move whitelisted dirs feature to using regex instead of array. Faster and more flexible.
santactl: Update help/error wordings
santad: Add whitelisted directory support