fixed issue when embed box would remain hidden even when valid link was sent there, refurbished the URL parser to exclude things that can not be legal urls (java.some.class e.g.), tutorial indentation
fixed issue when embed box would remain hidden even when valid link was sent there, refurbished the URL parser to exclude things that can not be legal urls (java.some.class e.g.), tutorial indentation

gokhanturunc/kd,anonrig/kd,anonrig/kd,koding/kd,gokhanturunc/kd