Add Heap Sort algorithm (using existing Heap data structure implementation).
Adding heap_sort implementation to main modules
Merge branch 'master' of https://github.com/lifebeyondfife/algorithms.js
Remove unncessary Comparator object. Rename variables to Camel case.
Merge pull request #38 from lifebeyondfife/master

Add Heap Sort algorithm (using existing Heap data structure implementation).