update backbone, underscore and less

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
load utils after vendor, so we can use vendor objects in it

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
make color_scale a global (utils) object

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
playout: use utils' color_scale()

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
schedule: use utils.color_scale() so events get painted the same color than playout

Signed-off-by: Niv Sardi <xaiki@evilgiggle.com>
Timeline: fixed bug inserted in f0f1519.