Use version of natural module that doesn't depend on webworker-threads

[jasonrudolph]

As a temporary solution until #4 is implemented, this pull request updates spelling-manager to depend on the last version of the natural module that didn't include the webworker-threads dependency.

The webworker-threads dependency was introduced in NaturalNode/natural@ba626e9, which first appears in 0.5.1. Therefore, this pull request declares a strict dependency on 0.5.0.

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@dmoonfire: Would you be willing to merge this pull request and publish a new version of the spelling-manager module so that we can use it to resolve the issue described in atom/spell-check#67 (comment)?

[jasonrudolph]

Hmm. I'm not sure why the Travis CI build is failing. All the tests pass locally:

$ git show
6d99a2f :arrow_down: [email protected] (Jason Rudolph, 2 hours ago)

$ npm install && npm test
npm notice created a lockfile as package-lock.json. You should commit this file.
updated 1 package in 2.515s
npm WARN lifecycle The node binary used for scripts is /Users/j/.nodenv/shims/node but npm is using /usr/local/Cellar/node/9.11.1/bin/node itself. Use the `--scripts-prepend-node-path` option to include the path for the node binary npm was executed with.

> [email protected] pretest /Users/j/github/spelling-manager-js
> npm run build

npm WARN lifecycle The node binary used for scripts is /Users/j/.nodenv/shims/node but npm is using /usr/local/Cellar/node/9.11.1/bin/node itself. Use the `--scripts-prepend-node-path` option to include the path for the node binary npm was executed with.

> [email protected] prebuild /Users/j/github/spelling-manager-js
> npm run lint

npm WARN lifecycle The node binary used for scripts is /Users/j/.nodenv/shims/node but npm is using /usr/local/Cellar/node/9.11.1/bin/node itself. Use the `--scripts-prepend-node-path` option to include the path for the node binary npm was executed with.

> [email protected] lint /Users/j/github/spelling-manager-js
> tslint --project src/


> [email protected] build /Users/j/github/spelling-manager-js
> tsc -p src


> [email protected] test /Users/j/github/spelling-manager-js
> mocha lib/spec/*-spec.js



  environment-spec.js
    ✓ verify test framework works

  tokenizer-spec.js
    ✓ an English sentence
    ✓ an English sentence with contraction
    ✓ a mostly English phrase with an accent
    ✓ a Japanese sentence


  5 passing (10ms)

[dmoonfire]

Oh, because I never set up Travis CI properly on this repo. I was trying to figure out a bug that was resolved differently.