Merge pull request #26 from richo/master

Add an __init__.py
Allow using input instead of raw_input in python 2.x.
Fixes python 2 style print statement.
Use raw_input when running in Python2
Merge pull request #31 from tevino/master

Solve NameError: name '[user input]' is not defined in Python2 fixed by tevino
Removes extra line.
Adds links to robust projects that can do the same thing (better.)
Remove hardcoded sigil