removed valueMode constraint on max. 1 variated parameter
added jasmine tests

#33 Structure: Better management of discharge inversion. PAB tests are better for discharge calculation but still wrong.

only write to currentValue during calculation
Fix incorrect use of isDefined in SectionCirc
isDefined: protection against empty result
.v is now held by ParamDefinition and not ParamValues
updated tests
adapted value mode checks to new local .v

only write to currentValue during calculation
Fix incorrect use of isDefined in SectionCirc
isDefined: protection against empty result
.v is now held by ParamDefinition and not ParamValues
updated tests
adapted value mode checks to new local .v

merged cParamsCanal and ParamsSection
Structures are now only defined by their LoiDebit (no more StructureType)
Session : fixed serialization of lately registered Nubs
Sections are now defined by a CalculatorType and a NodeType
fixed bug in findFirstSingleParameter
added tests for session serialisation

added jasmine tests (indirect linked parameters, value modes consistency)
improved session management
protection against special "Pr" case in many parameter iterations
fixed many parameters-related bugs in Section / Remous / Strcuture

familles de paramètres et de résultats
fix #68 détection de références circulaires
suppression d'interfaces
fix #78

gestion visibilité des paramètres
lois admissibles dépendantes du type de structure parallèle