o Support for Microsoft idiocy : we now can use underscores in AttributeTypes.
o Added the TooCOmpexDnException static Instance to avoid creating a new exception every time we have to throw it
o Renamed the TooComplexException to TooComplexDnException for clarity
o Javadoc update
o Tests improvements

git-svn-id: https://svn.apache.org/repos/asf/directory/shared/trunk@1601197 13f79535-47bb-0310-9956-ffa450edef68