tox.ini
Patch for tox
Octave: Reference frequency as module constant
Turbulence: Small changes to plotting.
Turbulence: Use autojit

Use autojit to allow faster calculation of the refractive-index field.
Merge pull request #25 from FRidh/dev

Several unrelated commits.
Merge pull request #24 from felipeacsi/master

Tox
Turbulence: Move field generation outside of loop
Merge pull request #26 from FRidh/turbulence

Turbulence: Move field generation outside of loop
Merge branch 'master' of github.com:python-acoustics/python-acoustics