Tiny typo in docs
Merge pull request #120 from mordyovits/patch-1

Tiny typo in docs
Errors instead of panics on closed delivery chan

When receiving from a closed delivery chan, a zero value Delivery could
be returned.  Calling Delivery.Ack() would panic without a clear reason
why.  Instead of panicing return an err indicating that the Delivery is
not initialized.

When ranging over the delivery chan, this error would never be returned.
fix import path "code.google.com/p/go.net/context" => "golang.org/x/net/context" in examples
Merge pull request #123 from pierrre/master

fix import path "code.google.com/p/go.net/context" => "golang.org/x/net/context" in examples
Moves examples into non-installed location

Thanks for the tip from @pierrre in #123