organ profiles.

contextual. It depends on the model chosen and past actions.

timestamp (if there is any, and if the option has been chosen).

the radius.

from the GUI:
* 'percent_diam': transverse range for searching the next point
                  (in diameter unit)
* 'detection_step': step size for the skeleton detecvtion (in pixels)

- bugfixes for Py2/3 compatibility
- multilingual support with gettext (English-only for now)
- partial refactoring, for the multilingual support
- new ways of estimating the growth length
- new estimation of B, with the selection of a steady-state image

- xrange -> range
- pylab.find -> numpy.flatnonzero
- scipy.misc.fromimage -> numpy.asarray

phenotyping.

a hdf5 data file.

* new DraggablePoints widget
* changes in DraggableLines widgets