README uses 'coveralls' command line tool instead of executing the sc…

[ksobue]

I found "bin" entry in package.json and coveralls command is available. User does not have to specify the script file under node_modules folder.

[revelt]

Hi peeps, let's make this Sunday awesome and get this PR sorted!

@ksobue please don't get discouraged if this PR is closed, OK? Everything's fine, it's just PR, it means nothing. On the other hand, the fact that you're contributing means a lot. Only 1% of population take initiative and you're among them. Let's sort this and move on.

---

I did some sanity checks, to me it looks like this PR is incorrect because piping data into coveralls should not work. I might be mistaken, but I can't test mocha case --reporter mocha-lcov-reporter | coveralls as I'm an AVA fanboi and I don't have any libs using mocha and I'd rather not spend half-day assembling a new dud library for test purposes.

Same way, simple eslint call would call global install, but "lint": "./node_modules/.bin/eslint src/main.js" calls local-one, from dev-dependencies.

@shinnn please confirm that this PR is not good, so we can close this, OR suggest some amends so we can sort this.

[jtwebman]

Since this library doesn't seem to be supported anymore I fix a bunch of things on a fork if you want to check it out and are still pulling the library into your packages: https://github.com/jtwebman/coveralls-next