db : update physical schema

update physical schema
update ERR schema
db evo

sla in-s now a view,
update interface will be thru the table sla_ins
next step : build the srv_side php to manage the update/add
functionnalities
update table is now an xml file

the table with the sla updated values is now converted as an xml file,
ready to be send to the server.
before that I have to manage a seesion identifier.