[svg] do not fail and alert when an SVG is not found (with option to disable the alert)
[svg] do not fail and alert when an SVG is not found (with option to disable the alert)

twitwi/deck.js,ProgRT/deck.js,alexjobs/deck.js-1,alexjobs/deck.js-1,ProgRT/deck.js,twitwi/deck.js,ProgRT/deck.js,alexjobs/deck.js-1,twitwi/deck.js