Use better english for RequestError linked to a Timeout

src/errors/__tests__/network_error.test.ts

@@ -32,7 +32,7 @@ describe("errors - NetworkError", () => {
     expect(networkError.code).toBe("PIPELINE_LOAD_ERROR");
     expect(networkError.fatal).toBe(false);
     expect(networkError.message)
-      .toBe("NetworkError (PIPELINE_LOAD_ERROR) TIMEOUT");
+      .toBe("NetworkError (PIPELINE_LOAD_ERROR) The request timed out");
   });
 
   it("should filter in a valid error code", () => {
@@ -50,7 +50,8 @@ describe("errors - NetworkError", () => {
     expect(networkError.code).toBe("PIPELINE_LOAD_ERROR");
     expect(networkError.fatal).toBe(true);
     expect(networkError.message)
-      .toBe("NetworkError (PIPELINE_LOAD_ERROR) ERROR_HTTP_CODE");
+      .toBe("NetworkError (PIPELINE_LOAD_ERROR) An HTTP status code " +
+            "indicating failure was received: 13");
   });
 
   it("should return false in isHttpError if not an HTTP error", () => {

src/errors/__tests__/request_error.test.ts

@@ -40,6 +40,6 @@ describe("errors - RequestError", () => {
     expect(requestError.xhr).toBe(undefined);
     expect(requestError.status).toBe(355);
     expect(requestError.type).toBe("TIMEOUT");
-    expect(requestError.message).toBe("The request timeouted");
+    expect(requestError.message).toBe("The request timed out");
   });
 });

src/errors/request_error.ts

@@ -59,7 +59,7 @@ export default class RequestError extends Error {
 
     switch (type) {
       case "TIMEOUT":
-        this.message = "The request timeouted";
+        this.message = "The request timed out";
         break;
       case "ERROR_EVENT":
         this.message = "An error prevented the request to be performed successfully";