Fix problem with SCSS compilation in SFU plugins

With the previous configuration, the contents of SCSS files were passed
through verbatim as CSS, resulting in invalid syntax.
Merge pull request #184 from va7map/fix-plugin_css

Fix problem with SCSS compilation in SFU plugins
Rename variables to match the keys in the JSON from REST Server

With the introduction of classType in the REST API, sectionCode can now be properly used to distinguish which sections are tutorials/labs for a given enrolment Section.

However, I was re-using the same variable 'section_code' to refer to 2 different things which was causing unexpected behaviour for sections that had no tutorials/labs. This results in Steve's script wanting to delete these sections.
Merge pull request #185 from ronvs/fix-section-tutorial-api

Rename variables to match the keys in the JSON from REST Server
Merge branch 'sfu-develop' into buildbox