Merge pull request #1 from sunilunka/Master

Merge changes in Master and gh-pages.
Updated comments in HT.js

Updated some of the comments in the HT.js file to further explain why
certain code was used.
Merge pull request #2 from sunilunka/Master

Compressed pictures even more.
Update HT.js
Merge pull request #3 from sunilunka/gh-pages

Updated colours in gh-pages version of HT.js