Fixed an error inisde the MatchingFactory causing problems with C2W experiments. Refers to issue #30.
Added a better error handling to the NERDAnnotatorConfig.
Checked the NERD annotator and made some minor changes. Moved the key property into the gerbilkeys.properties file. However, I couldn't test the annotator without a key.
Checked the FOX annotator. Created a simple testing main class for it. Cleaned up some classes. Removed the time measurement because it isn't used in our version.