added annotations of this corpus
JUnit testing revealed a systematic error in the first regex and also some missing regular expressions for allelic mentions (e.g., Ala/Tyr 123)
Added two classes to evaluate the corpus of Wei et al.
Added two classes to evaluate the corpus of Verspoor et al.
Leading sign (+/-) can no longer be separated by a whitespace (\s), but rather sticks to the number (e.g., +123 instead of + 123)
Gene table may have different column names, depending on the used database...