bin/openquake:
bin/openquake:

Added shorter versions of hazard and risk command-line options, for
convenience. While the original options are nice and explicit, they're
also a pain to type out every time.


Former-commit-id: 7037a11994c1e0f84e7281ba580e479dff4d089c [formerly 7037a11994c1e0f84e7281ba580e479dff4d089c [formerly aebd4860c3cf48c2420b6dddf074723885f6c7d3]]
Former-commit-id: f5e6fb2ec4aa13cbb09dbc194c19520c93a6c256
Former-commit-id: 04f1510232878ffcf93cd64e77e119bad1b9c0e2
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine