Merge pull request #10 from pradal/master

Visualea dataflow
Merge pull request #11 from pradal/master

Final dataflow
ENH- Segment the stem and compute light
FIX - Backport turtle file from caribu for compatibility with older Caribu versions
Update ChangeLog.txt
Add vertex colour support on PLY format
Enh - Convert segmentation to MTG
Finish MTG exctraction and enhance segmentation interpretation
Add measured properties for leaves and try to fit leaves (experiment)
New dataflow module for scanalea
Add screenshot
Remove unwanted files
light computation
Final dataflow
add simple maize model to assess segmentation
rename maize modules
add some docstrings
Merge pull request #12 from christian34/master

Add a maize model to predict number of ligulated, growing or  missing leaves from a segmented plant.
New ipython notebook