- [nj] made demo-active link only in expanded submenu
- [submodule][ekzo.sass] updated to latest 2.0.0-alpha version
- [sass] updated options according to latest ekzo.sass changes
- [sass] added default hover color for buttons
- [nj] added other version of `catalog-section` with flat buttons and link to it into sidebar-menu
- [nj][sass] replaced `.text--*` colors helpers with `color--*` to avoid collisions