Release 4.1.0

• Update changelog (05d4d06)
• Remove core-js dependency (735dd42)
• Upgrade @ehmicky/dev-tasks 0.30.47 -> 0.30.48 (9c8af6f)
• Upgrade core-js 3.2.1 -> 3.3.2 (e75d34a)
• Upgrade husky 3.0.8 -> 3.0.9 (43e68ff)
• Upgrade @ehmicky/dev-tasks 0.30.46 -> 0.30.47 (2a2fff6)
• Upgrade @ehmicky/dev-tasks 0.30.45 -> 0.30.46 (d02ccc3)
• Upgrade husky 3.0.7 -> 3.0.8 (8833f16)
• Upgrade @ehmicky/dev-tasks 0.30.44 -> 0.30.45 (d06fcf7)
• Upgrade @ehmicky/dev-tasks 0.30.43 -> 0.30.44 (1cd16be)
• Upgrade husky 3.0.5 -> 3.0.7 (9b126d9)
• Upgrade @ehmicky/dev-tasks 0.30.42 -> 0.30.43 (eb03150)
• Upgrade @ehmicky/dev-tasks 0.30.41 -> 0.30.42 (ec96b1f)
• Upgrade ava 2.3.0 -> 2.4.0 (18fda3c)
• Upgrade Travis from Ubuntu 16.04 to 18.04 (209c30c)
• Upgrade @ehmicky/dev-tasks 0.30.40 -> 0.30.41 (f6d409a)
• Fix package.lock (a57d9c7)
• Use @ehmicky/dev-tasks (aedb813)
• Update gulpfile.js (c7150c9)
• Update ava.config.js (8113390)
• Update CONTRIBUTING.md (e5d96ab)
• Fix linting (dbb7db6)
• Upgrade gulp-shared-tasks 0.30.39 -> 0.30.40 (ba73c31)
• Update .eslintrc.yml (a73dfb0)
• Update .prettierrc (d6315dd)
• Update CONTRIBUTING.md (865ba67)
• Upgrade gulp-shared-tasks 0.30.38 -> 0.30.39 (a356037)
• Upgrade husky 3.0.4 -> 3.0.5 (a59de6d)
• Upgrade gulp-shared-tasks 0.30.37 -> 0.30.38 (bd84bcd)
• Update benchmarks (483d475)
• Upgrade power-cartesian-product 0.0.3 -> 0.0.4 (c9b3c59)
• Update benchmarks (4bbdc3b)
• Upgrade big-cartesian 1.0.0 -> 1.1.0 (b139203)
• Add benchmark for big-cartesian (d52c26c)