Merge branch 'master' into dev
optimizing the component count
updated docs
absolute value of incoming signal

between -1 and 1. can update this to work with all values if i use
Tone.Switch
attack / release frequency shifting
renamed EqualsZero
absolute value of any input signal
compare a signal to a number
code cleanup a bit
signal absolute value
signal comparison
rename
tests
updated readme
removed docs
updating tests
Merge branch 'dev'
new build
Merge branch 'master' into gh-pages