npm: v6.3.0-next.0 Release

NEW FEATURES

• ad0dd226f npm/cli#26 npm version now supports a --preid option to specify the preid for prereleases. For example, npm version premajor --preid rc will tag a version like 2.0.0-rc.0. (@dwilches)

MESSAGING IMPROVEMENTS

• c1dad1e99 npm/cli#6 Make npm audit fix message provide better instructions for vulnerabilities that require manual review. (@bradsk88)
• 15c1130fe Fix missing colon next to tarball url in new npm view output. (@zkat)
• 21cf0ab68 npm/cli#24 Use the defaut OTP explanation everywhere except when the context is "OTP-aware" (like when setting double-authentication). This improves the overall CLI messaging when prompting for an OTP code. (@jdeniau)

MISC

• a9ac8712d npm/cli#21 Use the extracted stringify-package package. (@dpogue)
• 9db15408c npm/cli#27 wrappy was previously added to dependencies in order to flatten it, but we no longer do legacy-style for npm itself, so it has been removed from package.json. (@rickschubert)

DOCUMENTATION

• 3242baf08 npm/cli#13 Update more dead links in README.md. (@u32i64)
• 06580877b npm/cli#19 Update links in docs' index.html to refer to new bug/PR URLs. (@watilde)
• ca03013c2 npm/cli#15 Fix some typos in file-specifiers docs. (@Mstrodl)
• 4f39f79bc npm/cli#16 Fix some typos in file-specifiers and package-lock docs. (@watilde)
• 35e51f79d npm/cli#18 Update build status badge url in README. (@watilde)
• a67db5607 npm/cli#17 Replace TROUBLESHOOTING.md with posts in npm.community. (@watilde)
• e115f9de6 npm/cli#7 Use https URLs in documentation when appropriate. Happy Not Secure Day! (@XhmikosR)