[bz4647743] Remove static handler's check for malicious paths

[add0n]

we should be able to just remove statements like this, because Mojito closes all bad URLs down:

// Potentially malicious path
if (~path.indexOf('..')) {
return forbidden(res);
}
@Gissues:{"order":66.66666666666666,"status":"backlog"}

[caridy]

0.5.x static handler relies entirely on the store and the urls produced by the store, anything else is ignored (404).