Minor installer details
exception handling adapted
added future lib to dependencies
replaced xrange with future.range
replacing map with the one provided on future
reducing a bit the types-offer in favor of portability. Future.str is what we support now instead of python2.str&python2.unicode. This means that all basestring stuff is been removed as well
fixed non-deterministic repr of ObjectSchemas
de-hardcoded repr on test
fixing last failing tests (byte string made unicode prefixing u, and removed basetring, and invoked next(thing) instead of thing.next()
in-code documentation with updates re str/unicode support on different py versions
Merge branch 'python3-support' into develop
Starting by updating docstrins
validator renamed. A bit more docstrings updated
implemented and tested BagValidator
using forked version of schema since the original one does not interface well with future.builtins
testing that bags can also be tuples
transform and fit transform now are aware of bag-of-words, computing them as expected
BagValidator implements fitting as something separated from validation, so transforms does not modify it
small pep8 fix
fixed way of raising error