…aph)

- Add checks for figure_id
- Automatic naming for nonename figure_id
- Update introduction notebook

- Use K3D and LinearModelParametersWidget from menpowidget
- Support of landmarks in shape model

…owidgets if someone wants to view the models

…ayavi from menpo.shape.mesh to viewmayavi

… be imported from menpo3d.visualize

…d list_figures, dict_figures

…rks, graphs.

… all child classes

…nts are now casted as np.float32 in the initialization.

… without texture. Small bugs fixed

…lse and the figure_id does not exist, then we raise an exception

…lected_values is casted as numpy.arrays with type float32 in render_function in K3dwidgetsPCAModelViewer3d

…he distance from the mesh and z-axis is towards us. Ref menpo#4

…s. Default value is wireframe with opacity 0.3. Other option is surface. menpo#7

- K3dwidgetIdentity has a list of figure_ids and a dictionary
  with keys figure_id and values model_id.
- If a figure does not have a figure_id and new_figure is false,
  then we check the list of figure_ids. If empty, we raise an exception.
  Otherwise, we plot in the last figure of figure_id.

Address in part Issue menpo#6

…menpo#9

- Add rgbint function
- K3dwidgetsPointGraphViewer3d supports colours for each point
- K3dwidgetsPointGraphViewer3d will use as a shader the 3dSpecular
  if the number of points is greater than 1000

- Create  menpowidgets.py where LinearModelParametersWidget
  is defined (copy from menpowidgets package)
- Modify viek3dwidgets to call LinearModelParametersWidget
  from the abovementioned file.