Simple fix: expose run method in Javadoc for external evaluation of the API.

git-svn-id: https://svn.forgerock.org/openig/trunk@224 dbb9e58e-28e6-4ce0-90e8-f11d9605b710
OPENIG-115 CR-3625 Covers EntityExtractFilter

git-svn-id: https://svn.forgerock.org/openig/trunk@225 dbb9e58e-28e6-4ce0-90e8-f11d9605b710