Add /api route handler

src/routes/mod.rs

 use rocket::Rocket;
 
+pub mod root;
 pub mod account;
 pub mod user;
 pub mod channel;
 
 pub fn mount(rocket: Rocket) -> Rocket {
 	rocket
+		.mount("/api", routes![ root::root ])
 		.mount("/api/account", routes![ account::create, account::verify_email, account::resend_email, account::login, account::token ])
 		.mount("/api/users", routes![ user::me, user::user, user::lookup, user::dms, user::dm, user::get_friends, user::get_friend, user::add_friend, user::remove_friend ])
 		.mount("/api/channels", routes![ channel::channel, channel::delete, channel::messages, channel::send_message, channel::edit_message, channel::delete_message ])

src/routes/root.rs

+use rocket_contrib::json::{ JsonValue };
+use bson::{ bson, doc };
+
+/// root
+#[get("/")]
+pub fn root() -> JsonValue {
+	json!({
+		"revolt": "0.0.1"
+	})
+}