Loading VMType from default.vm.yaml
Loading VMType from chosen file.
Budget and deadline option bugs fixed.
Ability to override vm cache size from config
Ability to override all VM params except provisioning ones
Arg names and config entries extracted to handy constants.
Distribution factory. Provisioning changed to distribution type.
Loading (de)provisioning info from VM config file.
Duplicated ConstantDistribution class removed.
Provisioning cmd args added (that override config files)