Three optimizations:
- move example testing logic into a bash script to save travis specific
commands;
- use kubernetes release package (about 20MB) instead of git repo (about
800 MB at the moment);
- detect whether a PR contains changes to examples and skip examples
testing if not.
Closes: #13140
* Update Hugo version and apply HTML minification to production builds
* Use full flag names for clarity
* Remove Hugo installation logic out of Travis config and into Makefile
* Add Hugo version checking script
* Fix Netlify config version
* Add new Sass generation system
* Remove resources folder
* Add develop Sass command and sourcemaps
* Add Hugo version shortcode for use in docs
* Add OWNERS file to ./sass folder
Luc Perkins
Roy Lenferink
Rémy Léone
Qiming