Python 2/Python 3 compatible installation strategy
Further Python 3 compatiblity fixes
open v1.1.0 for dev

python3 compatibility development branch
make tests python3 compatible
Reduce double metadata definition

Fixes issue #7
more lower level tests
make pbkdf2 python3 compatible
fix binstring compatibility in BlockIO class
Get rid of vbuterin, use python-ecdsa instead
backward compatibility with py2 through 'six'
added basic example, now using sessions for requests
change headings in readme
change headings in readme