Temporary fix for SVG scaling to preserve aspect ratio of the bounding box
Appends surface class first so as not to interfere with bespoke theme
chooser
Added sym link to preview_export in preview_export for hrefs
Merge branch 'stable' of github.com:tantaman/Strut into stable
Removed sym link as it confused grunt
Merge branch 'stable' of github.com:tantaman/Strut into stable
Fixed the URLs of shapes so they load in preview and edit modes.
Merge branch 'stable'
Merge branch 'multiselect-fix-key-bindings'
Ignores at-rules when scoping CSS  GH-199

Also handle comma seperated rules.
Merge branch 'stable'
Added multidrag to slide components.
Added back Shift as toggle key for multiselection of slide components.
Tuned styles of the slide snapshot placeholder to avoid flickering on moving slides. Fixed some formatting issues in code.
Fixed Shift+click multiselect for slides.