[dojo-contributors] Beware: use dojo.config instead of djConfig

[James Burke]

As of r12124 on the 1.1 trunk, you should use dojo.config instead of
djConfig inside any of the dojo/dijit/dojox modules.

djConfig is still used externally to configure dojo, the only thing
that has changed is how we internally get the config values. To
support multiversion dojo in a page, the djConfig object is copied to
dojo.config. It is a shallow copy.

So:
- still use djConfig in your pages to configure dojo before including dojo.js.
- still use djConfig in comments when talking about the config
switches that dojo supports.

Just use dojo.config in the code to read the values.

I have updated dojo, dijit and dojox to use dojo.config (r12124 was
the last update).

BEWARE: check any patches you merge into head now, and any branch
merging you do. Nothing will visibly break, but down the road we will
have trouble.

James