Various code simplification/fixes and a lot of typo/grammar fixes (may brake some stuff)

pandalib-ws-client/src/main/java/fr/pandacube/lib/ws/client/AbstractClientWS.java

@@ -188,9 +188,9 @@ public abstract class AbstractClientWS implements AbstractWS {
     }
 
     @Override
-    public final void sendClose(int code, String reason) throws IOException {
+    public final void sendClose(int code, String reason) {
         synchronized (socket) {
-            autoReconnect = false; // if we ask for closing connection, dont reconnect automatically
+            autoReconnect = false; // if we ask for closing connection, don't reconnect automatically
             WebSocket ws = socket.get();
             if (ws != null)
                 ws.sendClose(code, reason).join();

pandalib-ws-client/src/main/java/fr/pandacube/lib/ws/client/KeyProtectedClientWS.java

@@ -70,7 +70,7 @@ public abstract class KeyProtectedClientWS extends AbstractClientWS {
     }
 
     /**
-     * Called when this Websocket is succesfully logged in to the server.
+     * Called when this Websocket is successfully logged in to the server.
      */
     public abstract void onLoginSucceed();