v6.0.0

Bug Fixes

• Add browserPerWorker setting (#420) (5320871)
• allow puppeteer >= 1.5.0 (#442) (181ee72)
• only throw timed out error if timed out (#435) (f6c20ab)
• remove wait-port dependency (#434) (3d6cae0)

BREAKING CHANGES

• drop support for node v10