Fixed#44 : BnfNodeParser: I must simplify results when multiple levels of ISA
Fixed#45 : Dynamic variables cannot be parsed at restart
Fixed#46 : Concepts variables values are transformed into list by default
Fixed#47 : SheerkaAdmin. Add min, max, mean time when restoring files
Fixed#35 : Refactor test helper class (CNC, CC, CIO)
Fixed#36 : Concept values are not used when declared with variable expression
Fixed#37 : Objects in memory lose their values are restart
Fixed#38 : func(a=b, c) (which is not allowed) raise an exception