update packages to latest version

node_modules/npm/doc/cli/npm-uninstall.md

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+npm-uninstall(1) -- Remove a package
+=============================
+
+## SYNOPSIS
+
+    npm uninstall [@<scope>/]<package> [--save|--save-dev|--save-optional]
+    npm rm (with any of the previous argument usage)
+
+## DESCRIPTION
+
+This uninstalls a package, completely removing everything npm installed
+on its behalf.
+
+Example:
+
+    npm uninstall sax
+
+In global mode (ie, with `-g` or `--global` appended to the command),
+it uninstalls the current package context as a global package.
+
+`npm uninstall` takes 3 exclusive, optional flags which save or update
+the package version in your main package.json:
+
+* `--save`: Package will be removed from your `dependencies`.
+
+* `--save-dev`: Package will be removed from your `devDependencies`.
+
+* `--save-optional`: Package will be removed from your `optionalDependencies`.
+
+Scope is optional and follows the usual rules for `npm-scope(7)`.
+
+Examples:
+
+    npm uninstall sax --save
+    npm uninstall @myorg/privatepackage --save
+    npm uninstall node-tap --save-dev
+    npm uninstall dtrace-provider --save-optional
+
+## SEE ALSO
+
+* npm-prune(1)
+* npm-install(1)
+* npm-folders(5)
+* npm-config(1)
+* npm-config(7)
+* npmrc(5)