Moved _tool.scss import from every tool's file into vizabi.scss
Removed unnecessary timeslider.scss import
Merge pull request #55 from amytych/feature/optimize-scss

Moved _tool.scss import from every tool's file into vizabi.scss
Merge branch 'develop' into feature/entity_picker

* develop:
  Removed unnecessary timeslider.scss import
  Moved _tool.scss import from every tool's file into vizabi.scss

Conflicts:
	src/components/_gapminder/buttonlist/_buttonlist.scss