fixed broken tadm trainer gzip encoding, and opens gzip unicode files using a function instead of a class
fixed problems in data.py so data.doctest passes; the nltk protocol now supports absolute paths; the file protocol now understands zip files
python 2.7 pickle compatibility
the TODO is not needed anymore: load() supports loading zip files
fixed bug in normalize_resource_name when dealing with empty strings
fixed test_corpus_views.py, obsolete code was used in the test
fixed toolbox.doctest xml api deprecation warning
normalize protocols properly in normalize_resource_url
FileSystemPathPointer shouldn't be a subclass of str, as the backward compatibility reason is invalid: nltk.data.find can also return a ZipFilePathPointer, which cannot be a subclass of str due to it's __init__ accepting 2 arguments, whereas str accepts 1
fixed data.doctest now that the nltk protocol is used by default
updated chat80 so it handles sqlite3 errors correctly
changed nltk.data.paths back to nltk.data.path as it's documented and a common environment variable name
resolve default paths for nltk.data.find at runtime in-case the user overrides nltk.data.path
dicts in doctests should use pprint to guarantee sortedness
Merge pull request #441 from jskda/master

nltk fixes