JNB:BUG: updated Suite2p notebook for Suite2p API changes

[swkeemink]

This is a simple PR that only updates the Suite2p notebook to work with latest Suite2p API changes.

Currently we do not support Suite2p on Binder but this will come in a follow-up update.

[codecov]

Codecov Report

Merging #257 (a57eb12) into master (af2708e) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #257   +/-   ##
=======================================
  Coverage   94.12%   94.12%           
=======================================
  Files           8        8           
  Lines        1209     1209           
  Branches      302      302           
=======================================
  Hits         1138     1138           
  Misses         36       36           
  Partials       35       35           

Flag	Coverage Δ
nbsmoke	59.88% <ø> (-0.17%)	⬇️
unittests	93.79% <ø> (ø)

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