Pass qmValue as a scoop.shared constant.

scoop.futures.map does not accept additional arguments in versions >0.7.
Removed loadThermoDatabase

Modified load method in RMGDatabase class, to make loading of thermo, kinetic, statmech and solvation libraries.
TODO: Transport libraries are still always loaded but should be made optional as well.
Added more info for chunksize option.

Changed the argument to lowercase.