Update init.py with edi, add new model edi and 1/4 tooltip
add case of null value
Add new mako arealstatistik1997 2/4 and update edi model
Add new tooltip fsme.mako 3/4 + update edi model
Add tooltip for ch.bag.zecken-fsme-impfung 4/4 (use same tooltip than ch.bag.zecken-fsme-faelle)
Merge pull request #49 from geoadmin/dev_import_edi_model_and_Tooltip

Dev import edi model and tooltip