tests/input/logictree_test:
tests/input/logictree_test:

Big test overhaul. Refactored some tests so that they pass, and removed
some obsolete ones.


Former-commit-id: fc3537ff511ba873397caebfe313ce4c660a1be4
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine