Update ilios-jwt authenticator for ESA-token v4

ember-simple-auth-token v4 simplified the API and we needed to make some
changes to our custom authenticator to handle them.

app/authenticators/ilios-jwt.js

@@ -30,19 +30,17 @@ export default JwtTokenAuthenticator.extend({
         response[this.tokenPropertyName] = token;
         response[this.tokenExpireName] = expiresAt;
 
-        resolve(this.getResponseData(response));
+        resolve(response);
       } else {
-        var data = this.getAuthenticateData(credentials);
-
-        this.makeRequest(this.serverTokenEndpoint, data, headers).then(response => {
+        this.makeRequest(this.serverTokenEndpoint, credentials, headers).then(response => {
           const token = get(response, this.tokenPropertyName);
           const tokenData = this.getTokenData(token);
           const expiresAt = get(tokenData, this.tokenExpireName);
           const tokenExpireData = {};
           this.scheduleAccessTokenRefresh(expiresAt, token);
           tokenExpireData[this.tokenExpireName] = expiresAt;
           response = merge(response, tokenExpireData);
-          resolve(this.getResponseData(response));
+          resolve(response);
         }, e => {
           let error = {
             'message': e.message,

app/components/login-form.js

@@ -8,12 +8,12 @@ export default Component.extend({
   errors: null,
   noAccountExistsError: false,
   noAccountExistsAccount: null,
-  identification: null,
+  username: null,
   password: null,
   authenticate: task(function* () {
     try {
       this.set('errors', []);
-      const credentials = this.getProperties('identification', 'password');
+      const credentials = this.getProperties('username', 'password');
       const session = this.get('session');
       const authenticator = 'authenticator:ilios-jwt';
       yield session.authenticate(authenticator, credentials);

app/templates/components/login-form.hbs

@@ -7,14 +7,14 @@
   {{/each}}
   <form {{action (perform authenticate) on="submit"}}>
     <div class="item">
-      <label for={{concat elementId "-identification-input"}}>{{t "general.username"}}:</label>
+      <label for={{concat elementId "-username-input"}}>{{t "general.username"}}:</label>
       <input
-        id={{concat elementId "-identification-input"}}
+        id={{concat elementId "-username-input"}}
         type="text"
         autocorrect="off"
         autocapitalize="off"
-        value={{identification}}
-        oninput={{action (mut identification) value="target.value"}}
+        value={{username}}
+        oninput={{action (mut username) value="target.value"}}
       >
     </div>
     <div class="item">