[TIKA-1371] Optional registration of new TikaLoggingFilter

git-svn-id: https://svn.apache.org/repos/asf/tika/trunk@1616118 13f79535-47bb-0310-9956-ffa450edef68
[TIKA-1371] Minor update to TikaLoggingFilter

git-svn-id: https://svn.apache.org/repos/asf/tika/trunk@1616121 13f79535-47bb-0310-9956-ffa450edef68