airbnb/javascript — pull request #220 by justjake (2014-12-01 22:46:29+00:00)
Title: Switch to one-variable-per-var from many-variables-per-var

Frontenders at Airbnb at have been discussing this change for a bit, and
we've come to favor one-var-per-variable over one-var-only declarations.
Two things improve the maintainability of this style over one var for
multiple variables:

1. You never have a diff of a line that's removing a `;` and inserting
a `,`.
2. You can't accidentally declare global variables because you have a
one-character mistake (semicolon instead of comma):

```javascript
var foo = 1,
bar = 2;
baz = 3; // added later and (accidentally) declared globally
```

Also, make a docstring comment example JSDoc/GoogleClosureCompiler compatible