Adding few information about requirements
Minor rearrangement
Delete (duplicate)
Uncoupled form models from models.py

Fields renamed in inventory/forms.py
Simplified urls for coherence
Style update

Added 2 templates (out and report) for using a drug and for editing a
paper report (in pdf).
Added 2 icons with their respective svg.
Cut the css into smaller files for convenience.
Created a JS file containing all script.
Minor changes
Rewritting of the POST callbacks
Added Application model for all application behaviour settings

Also deleted old models and constants
Major changes in models and added a view for creating a pdf version of the list

Dotations are now a class linked (ManyToMany) through a Drug Requested
Quantity (DrugReqQty). This allows to set the requested quantity *per*
dotation and not per inn (BaseDrug).
Tag class has been created to embed some feature about the inn (eg.
"keep cold" or "common use")
In consequence, DruGroup has been rewritten. An inn can be linked to
*only one* group (ForeignKey).
In BaseDrug, "dose" and "unit" are now merged into "composition".
Also some renaming to match medical terms.
Setting the STATIC_ROOT