Invalid dependency name

```
npm install -g manpm
npm ERR! unpack Could not read data for @bahmutov/parse-github-repo-url@0.0.0
npm ERR! Darwin 15.3.0
npm ERR! argv "/usr/local/bin/iojs" "/usr/local/bin/npm" "install" "-g" "manpm"
npm ERR! node v4.3.0
npm ERR! npm v2.14.12

npm ERR! Invalid name: "@bahmutov/parse-github-repo-url"
```

Start by reproducing the reported `npm install -g manpm` command with the dependency information shown in the issue. Inspect the package metadata and dependency declaration to identify why npm rejects the dependency name; done means the package installs without the invalid-name error.

Written by the indexing model from the issue text.