removed monitoring tools which should be in the bootstrap, allow get calls for the /silex/tasks/ route,
handle calls to /silex/tasks/ route which does not exist
silex is now served at the root of the domain name, not in a subfolder anymore
fixed delete keyboard shortcut
fixed float in position and update display while dragging
fixed quand on supprime la valeur de H ou W, apres on ne peut plus rien changer https://github.com/silexlabs/Silex/issues/107