raw.github.com -> github.io

Already opened an issue, but here are the changes I made. This pull request would also need to be merged into gh-pages to actually work.

In the demo, some of the JS files are called from raw.github.com, but that source doesn't work anymore. If you look at my fork, you can see a working version. I moved the content from the master branch to the gh-pages branch so that the JS files are called from github.IO, which does work. I did this for json-ld-macros, semantic-ko and rdfstore-js.

-A