fix date
removed PE 150 which should be non-existent, delete pipe material id 5154 which is duplicate with 5155, completed some missing materials/diameters
small word fix
fix allow null
fix provider in hydrant form
add geometry to pipe schema error
add self reference for pipes
completed relations
Merge branch 'master' of github.com:3nids/qWat
Merge pull request #7 from tudorbarascu/master

Materials table completion/fix with RO translation
Merge branch 'master' of https://github.com/3nids/qWat