RXCollections/Lagrangian cleanliness. Merge commit '47f0e46aeed7e4fe2214d707433f936d82e18d62' into develop
RXCollections/Lagrangian cleanliness.
Merge commit '47f0e46aeed7e4fe2214d707433f936d82e18d62' into develop

robrix/Lagrangian,robrix/Lagrangian,robrix/Lagrangian