v5.1.1

Changed

• Remove fast-future in favor of native cache limit (#638) (@vweevers)
• Upgrade delayed devDependency from ^1.0.1 to ^2.0.0 (#650) (@vweevers)
• Upgrade readfiletree devDependency from ~0.0.1 to ^1.0.0 (#648) (@vweevers)
• Upgrade du devDependency from ~0.1.0 to ^1.0.0 (#649) (@vweevers)
• Upgrade mkfiletree devDependency from ^1.0.1 to ^2.0.0 (#647) (@vweevers)
• Upgrade node-gyp devDependency from ^4.0.0 to ^5.0.0 (#642) (@vweevers)
• Replace async devDependency with async-each (#637) (@vweevers)

Removed

• Remove benchmarks (moved to level-bench) (#635) (@vweevers)

Fixed

• Fix batch compression test to actually compress (#651) (@vweevers)