Migrate to actix

src/data/entity_manager.rs

@@ -7,7 +7,7 @@ pub struct EntityManager<E> {
     list: Vec<E>,
 }
 
-impl<E> EntityManager<E> where E: rocket::serde::Serialize + rocket::serde::DeserializeOwned + Eq + Clone {
+impl<E> EntityManager<E> where E: serde::Serialize + serde::de::DeserializeOwned + Eq + Clone {
     /// Open entity
     pub fn open_or_create<A: AsRef<Path>>(path: A) -> Res<Self> {
         if !path.as_ref().is_file() {