add eslint-plugin-import/first

[FrancescoCioria]

requirements

From their doc

Notably, imports are hoisted, which means the imported modules will be evaluated before any of the statements interspersed between them. Keeping all imports together at the top of the file may prevent surprises resulting from this part of the spec.

This is currently happening in every project we have that uses:

• babel6
• metarpheus
• prelude

In these projects we call the prelude function before metarpheus import, but since babel6 that import is (correctly) hoisted to the top so the prelude is actually called after it leading to some defects

specs

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misc

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