Merge pull request #149 from tuunanen/master

Fixed and unified Sitespeed.io quiz syntax #141
Fix JSLint and JSHint quiz syntact #143
Merge pull request #150 from tariel/master

Fix JSLint and JSHint quiz syntact #143
Update assignment project link
Merge branch 'master' of https://github.com/paazmaya/modern-web-tools-with-node-js-book
Merge pull request #151 from tariel/master

Updated assignment link
Links and examples
Merge branch 'master' of github.com:paazmaya/modern-web-tools-with-node-js-book
One more good link, as there are no bad links in the World of HyperLinks
Merge remote-tracking branch 'upstream/master'