= PriorityQueue

A very simple priority queue.

== Usage:

 pq = PriorityQueue.new
 pq[5]  << 'foo'
 pq[10] << 'unimportant foo'
 pq[1]  << 'important foo'

 pq.shift # => 'important foo'
 pq.shift # => 'foo'
 pq.shift # => 'unimportant foo'
 pq.shift # => nil

PriorityQueue is also enumerable.

== Install:

  sudo gem install priority-queue -s http://gemcutter.org

== License:

Copyright (c) 2009 Justin Balthrop, Geni.com; Published under The MIT License, see License.txt