Merge pull request #2 from ajwdewit/develop

Develop
Call the rate TRAMX, like in line 212.
Ther isn't "c = len(rows)" in this for-loop.
Wrong place?

It's the same __init__.py of pcse/db/cgms11/
Update assimilation.py documentation.
Update evapotraspiration.py documentation.
Update leaf_dynamics.py documentation.
Update partitioning.py documentation.
Update phenology.py documentation.
Update storage_organ_dynamics.py documentation.
Correct call of default parameters
Merged improvements from Ivan Orzan.