v6.5.1

Special thanks to @orta again for putting this release together.

• Improve error message for missing lockfile entry (contribution from @Andarist and @farskid in #439)
• Fix creating patches for github dependencies (contribution from @dijonkitchen in #444)
• Improve yarn 2 support by copying .yarn dir when creating patch (contribution from @bdwain in #438)
• Upgrade fs-extra (contribution from @stianjensen in #441)
• Add support for nmp lockfile v2 (contribution from @anas10 in #434)

v6.5.0...v6.5.1