Project is now under https://github.com/jerryscript-project and
https://jerryscript.net . Update hardcoded URLs to use HTTPS, both
for JerryScript and IoT.js. Make non-hardcoded URLs use Jekyll's
`relative_url` filter to avoid mixed content errors on GH Pages.
JerryScript-DCO-1.0-Signed-off-by: Akos Kiss akiss@inf.u-szeged.hu