added andalo csv,  re-enabled rdf-extension in the GUI

* re-enabled rdf-extension in the GUI
* moved backupdir in src/test/resources
* added Anagrafica Andalo in formato CSV project, with rdf  schema
* added Organizzazioni Certificate Family Audit project
columns headers now show some  mappings and types

* imported d3 Javascript library
* shows zero to one, one to many
* added ep* prefixes to predefined_vocabs 
* modified cell_editor to not show types (although it shouldn't do so for free columns)
* added dependency in pom on log4j-1.2.15 (it's in central!)
* aded file to test import problems for columns with same name
columns headers now show all  mappings, still lat split as lat problems and black lines.
introduced Rows class

* introduced Rows
* defined isValid, cast
* defined PartialCalendar
* cell type selection is allowed in columns with "odr:noType"