deque

Wrapper package for double-ended-queue.

This package currently exists to work around a
problem in the
read-installed package (used by
npm) that effectively forbids packages with prerelease versions (like
double-ended-queue@2.1.0-0) from being installed in a top-level
node_modules directory.

In the future, we might supplement this package with our own queue
features, but for now we export the
double-ended-queue
module unmodified.