Merge pull request #37 from oadan79/master

Modificat l'error que donava al passar llista
now profile an body header imatges are taken from current user info
Solved warnings in images controller
added Study to inventory object maintainer
return to localhost
Explained some migration SQL querys. Added sergitur to admin users
Multiple enahcments
Modificatsinformes class list report i class sheet report per a mistrar les fotos amb dades mysql
Merge branch 'master' of https://github.com/acacha/ebre-escool