Make process shim not necessary on production environments

[kaisermann]

Fixes #403

[k1r0s]

Would prefer this one just to ensure that we don't throw any exception because env is null or undefined

const DEV = typeof process !== 'undefined' && process.env && 'development'!=='production'

Additional checks are free

[kaisermann]

I agree. Done!

[lukeed]

Is the shim still skipped if we do this?

const DEV = typeof process === 'undefined' || process.env.NODE_ENV !== 'production';

[k1r0s]

@lukeed I would preffer @kaisermann statement since is more easy to read and has no chance to raise NPE

[k1r0s]

LGFM! any comments before merging?

[lukeed]

Nope~! I don't think mine is any harder to read, but I'm happy as long as a solution works 😄

[k1r0s]

Slightly hard haha, both are easy to read sorry :)