Pep8 fixes
unit test for qft
removed target bug from snot() and added controlled phase gate cphase()
added function to resolve the QFT steps- has a bug
Added classes, gates and qubit circuits
Added gate sequence representation to qft
Fixed bugs pertaining to targets and controls
Added QubitCircuit and Gate
Changed hadamard func. name to hadamard_transform
Removed mask parameter and changed controls and target defaults from None
Added minified version of Qcircuit.tex in qcircuit_latex.py
Removed bug from qft_steps and added swap sequence to qft_gate_sequence
Added qft to __init__.py
Merge pull request #131 from anubhavvardhan/qft

Qft_extension