v1.6 - June 2016

Notable user changes:

• Export menu
• Undo/redo buttons
• A second toolbox below the circuit
• Showing 'discard rate' when post-selection is present
• New gates (Inverse QFT, reverse, zero, shifts [<<, >>, <<t, >>t], multiply-accumulates [c+=ab, c-=ab], X/Y-axis control/post-selection [⊕, ⊖, ⊗, |X⟩⟨X|, |+⟩⟨+|, |-⟩⟨-|])

Notable dev changes:

• Build output is now a single html file
• Testing that gate shaders correspond to their claimed matrices
• Testing backwards/forwards serializer compatibility w.r.t. known gate ids
• Support for saving an offline copy (including all code and current circuit)
• Support for transformed controls (via pre/post shaders)
• 'sans-serif' instead of 'helvetica'
• Hidden tiny-Z gates ("Z^⅟₁₂₈", "Z^⅟₆₄", and "Z^⅟₃₂")
• Fixed double-draw when grabbing things
• Fixed not showing "Scripts disabled" in some cases
• Some untangling in main.js