STANBOL-986: The CELI engines do now allow to condigure the connection (and read) timeout. The default is 30sec; UnitTests do use a timeout of 5sec; minor: removed also some comments left over from feedback provided to the code originally contributed to Stanbol.

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1458191 13f79535-47bb-0310-9956-ffa450edef68