- Add access to ESLint docs
- Add support for parametrized Docker builds, building different
  versions of the documentation
- Automatically detect which version of the docs we should be including

Fixes:

    npm WARN eslint-config-airbnb@6.2.0 requires a peer of eslint@^2.4.0 but none was installed.
    npm WARN codeclimate-eslint@0.0.3 No license field.
    Cloning into 'eslint'...
    npm ERR! peer dep missing: eslint@^2.4.0, required by eslint-config-airbnb@6.2.0
    npm ERR! code 1
    error: pathspec 'vnull' did not match any file(s) known to git.

Fixes:

    /usr/src/app/node_modules/meld/meld.js:67
                      if (typeof target[pointcut] === 'function') {
                                        ^

    TypeError: Cannot read property 'loadPackage' of undefined
        at meld (/usr/src/app/node_modules/meld/meld.js:67:23)
        at Function.around (/usr/src/app/node_modules/meld/meld.js:436:12)
        at patcher (/usr/src/app/lib/eslint-patch.js:21:8)
        at Object.<anonymous> (/usr/src/app/bin/eslint.js:11:44)
        at Module._compile (module.js:397:26)
        at Object.Module._extensions..js (module.js:404:10)
        at Module.load (module.js:343:32)
        at Function.Module._load (module.js:300:12)
        at Function.Module.runMain (module.js:429:10)
        at startup (node.js:139:18)

Fixes #91

```
eslint@2.4.0               -> eslint@2.10.2
eslint-config-airbnb@6.0.2 -> eslint-config-airbnb@9.0.1
eslint-plugin-babel@2.1.1  -> eslint-config-airbnb@3.2.0
eslint-plugin-react@4.0.0  -> eslint-config-react@5.1.1
```

Many users using [Standard Style][] also use these configuration packages when
writing React/JSX.

[Standard Style]: https://github.com/feross/standard

This commit vendors the [eslint-config-standard-react] and
[eslint-config-standard-jsx] packages.

[eslint-config-standard-react]: https://github.com/feross/eslint-config-standard-react
[eslint-config-standard-jsx]: https://github.com/feross/eslint-config-standard-jsx

eslint-2: Vendor eslint-plugin-angular package

Related to #111, a Segfault occurs when we hammer STDOUT with issues.
Switching from alpine to a debian-based image seems to behave better in
this scenario.

We're a bit behind on these. Flowtype in particular has new rules we
weren't supporting.

Looks like we hadn't actually filled in the shrinkwrap file before now,
either, so that's done.

hapi eslint config is based on eslint-config-hapi
and eslint-plugin-hapi packages

eslint-config-airbnb-base is a transitive dependency of
eslint-config-airbnb, but it is useful in its own right and should be
included at the top level such that it has proper support in the eslint
engine.

* eslint-3: Added ESLint plugins

* Added appropriate eslint-plugin rule categorizations

* Shifted category mappings to individual JSON file

* Alphabetized ESLint plugin rule category mapping

The eslint bump was necessitated by `airbnb-config-base` wanting it.
There's also a 2.0.0 of `eslint-plugin-import` available, but attempting
to jump that far gave some peer package errors, so maybe we can't
support that yet.

The file, for now, shows how to create a local engine image for testing.

As requested in #144.

- Update project/documentation links
- Use open source Code Climate badge
- Hard-wrap text
- Fix YAML identation

* We're several point releases behind on ESLint
* After updating just that, I got some errors from shrinkwrap for two
  other packages we support, so I upgraded those too.

This seems more intuitive to me today, and I hope will make it easier
for contributors who want to add or upgrade plugins.

Note: this is using nightly yarn, because there's a fix for Circle CI +
Docker + Yarn compatibility that is made but not officially released
yet. We can switch to stable yarn once 0.18.0 leaves pre-release. The
fix was PR 1837 on the Yarn repo.

Close #155

Just ran: `bin/yarn add eslint-plugin-meteor`

`bin/yarn add eslint-plugin-immutable`

`bin/yarn add eslint-plugin-import-order`

`bin/yarn add eslint-plugin-jasmine`

`bin/yarn add eslint-config-semistandard`

Yarn upgrade babel-eslint ^7.0.0
Yarn upgrade eslint-plugin-flowtype to ^2.21.0
Yarn upgrade eslint-plugin-import to ^2.0.1
Yarn upgrade eslint-plugin-jsx-a11y to ^2.2.3
Yarn upgrade eslint-plugin-react to ^6.4.1

```
make
bin/yarn upgrade eslint
```

We'd like to pull in a fix for a bug that prevents using this rule:
http://eslint.org/docs/2.0.0/rules/generator-star-spacing

Automatically upgrade pre-ESLint 3 config to ESLint 3-compatible format.

When upgrader encountered a project that had no .eslintrc* but had an
unrelated package.json that had no ESLint-related options in it an
exception was thrown.