[patch] making dojo/uacss use correct module return value

[zhangyp]

this patch makes dojo/uacss use correct module return value. It passed unit test dojo/tests/uacss after the patch was applied.

[bill]

Thanks for the patch, I'll check this in. A few changes:

• As I said in a few other of your tickets, our convention is to map "dojo/_base/sniff" --> has, so the builder can strip unused code blocks in browser specific builds. Of course if we ever decide to has() return booleans only, all that will change.
• It seems silly to require "dojo/_base/kernel" just to be able to return "dojo" from the module, so I'll change it to return has. I checked the existing code base and no one is currently using the return value from "dojo/_base/sniff", so changing it isn't an issue.

[bill]

In [26109]:

fix dojo/uacss to be baseless, patch from Stephen Zhang (thanks!), fixes #13630 !strict.

[zhangyp]

I did not expect the patches been applied in such a short time. :-). I will change the sniff convent in the tickets that is not closed.

[bill]

No worries, I happened to have some free time today. Thanks for all the patches.