Move from LESS to SCSS
Created by: njoyard
lesscpy is not fully LESS-compliant. Instead django-libsass relies on libsass, which is a fully compliant C/C++ implementation of SASS/SCSS.
The reason for that change: I came across a lesscpy bug while adding new style to inactive meps, tried to fix it in lesscpy but seeing how poorly written it was made me change my mind - there is no other less implementation that does not require nodejs (actually there is one, but it is even less compliant).