support for no_std is broken

[brenzi]

This crate doesn't work for no_std.
On of the reasons:

arrayvec/src/lib.rs

Line 34 in fd4a646

use std::cmp;

Any chance to get no_std support?

[burdges]

I'm surprised

arrayvec/src/lib.rs

Lines 28 to 29 in fd4a646

	#[cfg(not(feature="std"))]
	extern crate core as std;

does not handle this?

[brenzi]

You're right. probably the problem lies somewhere else? Maybe not even in arrayvec?
I'll have to check later

[brenzi]

wrong accusation