STANBOL-990: SentiWordNet (en) and SentiWSComponent (de) now use lowercase for matching. Both the dictionary and parsed words are converted to the lower case version by using the Locale of the according dictionary.

Minor: removed an unused configuration file - left over from the original contribution.

git-svn-id: https://svn.apache.org/repos/asf/stanbol/trunk@1458676 13f79535-47bb-0310-9956-ffa450edef68