NF: Added additional ref test.
NF: Added ability to limit number of free key responses.
NF/BF: Fix kwarg error in Func state and add a Debug state.
NF: Add tracking of current time to Movie state.
DOC: Fix docstring for Pulse.
NF/BF: Can now set Ref vars.
NF: Log pulse_end_time, too
NF: Instead of logging, make responses available as var.
test docstring edit
text docstring
docstrings
Merge branch 'placeholder' of https://github.com/eweich/smile into placeholder