o Renamed the encode and computeLength to encodeInternal and computeLengthInternal
o Made those methods package protected
o Moved some tests into sub-packages to be able to call the package protected methods
o Updated the Javadoc
o Fixed some badly used tag

git-svn-id: https://svn.apache.org/repos/asf/directory/shared/trunk@1579895 13f79535-47bb-0310-9956-ffa450edef68