Version of libcloudph++ used in the PhD thesis of Jaruga

This version contains the aqueous phase chemistry module of the Lagrangian scheme (@trontrytel):

• six trace gases are included: sulfur dioxide, hydrogen peroxide, ozone, carbon dioxide, ammonia and nitric acid
• chemical processes cover dissolving of trace gasses into water drops and their further dissociation into ions and oxidation of the dissolved sulfur dioxide to sulfuric acid.

Additionally this version contains (@pdziekan):

• different advection schemes for super-droplets
• different initialization options (constant multiplicity, more accurate initialization, initialization by specifying the radius and concentration)
• more accurate sub-steps
• aerosol sources
• different collision kernels and terminal velocities for super-droplets
• simulations using many GPUs