Collapse Travis jobs into 3 jobs
Collapse Travis jobs into 3 jobs


Former-commit-id: 6d297fde1e47ef489a41eef49facbf0d55e5adbb [formerly 4d95b0011bce3ff671e0f102c152f319a9bd6fa4]
Former-commit-id: eddc6646c30b33c8d5ad447ed586962b324ab3b2
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine