sanitize fix and improvements
some more tests
Merge pull request #7 from psoholt/master

Sanitize fix and VerbalExpressions default-regex started with url and email
- removed the reference to the file VerbalExpressionsEnum, which
  was gone anyways
- added a sealed class for collecting predefined enums that is
  a bit more usable then an enum.
- refactored the given class and tests to use the new CommonRegex
  class.
Commit merge of pullreguest #8 and changed namespace
merged with latest changes