Little changes to do more legible the code
Implemented the checkConsistency web service
Change the status of the project
Was implemented the applyChanges web service
- The web services write the request to the current configurations
- The web service save the history in the DB
Added a new model History.
this models stores the request in text format in the DB
Changed the way in which the restriction errors are computed.
- Update for PAD and CorrelatorConfiguration only
- Now the restriction errors are stored in the DB
- When the local restriction errors are updated for a resource the
  related resource are updated too
Update to align the ajax.py file with new way of update the
local restrictions errors
- only for PADs and Correlator Configurations
Now is used is_requested() to know if a resource is requested
Added method is_requested to Antenna resource
Added a new condition, this is used when a resource is not requested
but even so this resource have some restriction error
New status of the project
Was updated the DB schema
- Now was added a new column to Resource table