MIME breaking with 'class' declaration as it is without 'use strict mode'

[ryu047]

MIME module is breaking at class declaration, as it is expecting use strict mode.

Error states:

class Mime {
^^^^^
SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode

[broofa]

Looks like this is a node version issue? I'm using ES6 class, let, const, and template literals in v2. You'll need node@>=6.

I can add 'use strict'; (and may do so for forms sake), but it just surfaces other ES6-related issues.