First commit. Includes README, .gitignore & tagger.py (done for GENIA & Treebank, still missing MedPost) in root. Also has corpora/ dir which has Epistemonikos corpus, GENIA tagged corpus & MedPost tagged corpus. MedPost is a new version, it compiles and can translate tags to Treebank tagset. The original zipped distribution files for the corpora are in the corpora/ directory. Subdirectories have unzipped corpora and also include bash scripts for preprocessing the corpora, corpus_reader.py to read corpus through NLTK and other stuff. About new MedPost corpus: its compiled and can translate tags, but I haven't done the translation yet. corpus_reader.py for MedPost is also the old version. A new corpus_reader.py will be needed to load the translation of the corpus to the Treebank tagset.