Improve coloring regex

[triceam]

• Date/Time - make sure we support long and short date/timestamps
• URLs - highlight 'em
• Exception?
• namespaces?
• double check that we support string literals with both ' and "
• true/false/null/undefined

[triceam]

• added support for more date formats
  • MM/DD/YYYY, DD/MM/YYYY, YYYY/MM/DD
  • support numeric month or english word (both abbreviated and complete)
  • various delimiters (space ( ), period(.), slash(/), dash(-))
• added better timestamp support
  • 14:29:37 +4
  • 13:55:36 -0700
  • and other variations
• added support for generic URI prefix://path/foo.bar
• added exception support
  • includes prefixed exceptions: UserException
  • includes namespaced exceptions System.NullReferenceException
• suport namespaces
  • com.ibm.foo
• validated that we handle both single and double quotes
• fixed bad regexp for GUIDs
• added support for true/false/null/undefined
• added better numeric support
  • decimal 123.123
  • hex 0ABC98, xFF0000, and 0xFFEEEE