Automated npm publish broken

[tjduigna]

Describe the bug Last commit to master including version bumping the JS package failed to auto-publish.

To Reproduce See the travis log here https://travis-ci.org/github/exa-analytics/exatomic/jobs/740498208#L3810 and the relevant log snippet:

npm notice === Tarball Details === 
npm notice name:          exatomic                                
npm notice version:       0.5.3                                   
npm notice package size:  750.5 kB                                
npm notice unpacked size: 3.3 MB                                  
npm notice shasum:        1d603d3c483d894fa9bde10453604e81f95f2afe
npm notice integrity:     sha512-1ugoEuzgCbvws[...]K6/1ozeKHlyhQ==
npm notice total files:   35                                      
npm notice 
npm ERR! code E404
npm ERR! 404 Not Found - PUT https://registry.npmjs.org/exatomic - Not found
npm ERR! 404 
npm ERR! 404  'exatomic@0.5.3' is not in the npm registry.
npm ERR! 404 You should bug the author to publish it (or use the name yourself!)
npm ERR! 404 
npm ERR! 404 Note that you can also install from a
npm ERR! 404 tarball, folder, http url, or git url.

Expected behavior Version-bumped pushes to master should successfully publish the npm package.

Desktop (please complete the following information):

• OS: Travis build server
• Version: all new JS versions

Additional context The travis configuration should be tied to the organization's npm account.

[tjduigna]

Closing in favor of #231 where a permanent fix will be considered