Merge branch 'master' of github.com:gem/oq-commonlib into db-migrations
Backported features from the oq-lite branch
Added calculators package
Moved calc.py into calculators
Better naming
Addressed the points raised in https://github.com/gem/oq-commonlib/pull/50
Addressed more points
Removed a partially duplicated function
Merge pull request #50 from gem/db-migrations

Support of the oq-lite command-line tool
Merged from master