New factory for loading scenario from file
Fix indentation
Merge pull request #102 from javierhe/master

New factory for loading scenario from file
Addiditons for import scneario all in one go.
Merge branch 'master' of github.com:calpath/model-objects
Fixing in case of null sensor lane numbers.
Changes to model objects to account for unset demand MO attributes.
Merge pull request #103 from mnjuhn/master

Changes so that entire scenario can be inserted into DB from XML file.
Add method to get the current FD in the profile for a specified time
Move density to the base class, in order to get it serialized
Changes to schema, making fields optional and added check to addInputLink and addOutputLink to ensure no duplicates are added.
Merge pull request #104 from javierhe/master

Add method to get the current FD in the profile for a specified time. Move density to base class in LinkState
Merge pull request #105 from mnjuhn/master

Changes to schema, making fields optional and added check to addInputLin...