[UIMA-895] accidentally deleted an "optional" in a dir name - keyboard slip... restoring
[UIMA-895] accidentally deleted an "optional" in a dir name - keyboard slip... restoring

git-svn-id: dd361d0afbe84f3eb97f7061549e905c2c5df34b@637225 13f79535-47bb-0310-9956-ffa450edef68

apache/uima-sandbox,apache/uima-sandbox,apache/uima-sandbox