Added the ability to use iterators in Recipes.
Moved the magic of Sequence to Recipe and remove Sequence which is no longer needed. Sequence can now be implemented as a generator function.
Fixed small grammatical error in README.rst.
python3 iterators support
test env for python 3.4
better iterator type detection
clean six imports
Merge pull request #1 from satyrius/fix-python3-iterator

Recent Recipe / Generator changes now work with Python 3.
Merge pull request #149 from DevJac/recipe_generators

Recipe generators