specify a brand when registering accounts

src/Signup.js

@@ -51,6 +51,7 @@ class Register extends Signup {
         this.username = undefined; // desired
         this.email = undefined; // desired
         this.password = undefined; // desired
+        this.brand = undefined; // optional brand to let the HS brand its mail notifs
     }
 
     setClientSecret(secret) {
@@ -73,6 +74,10 @@ class Register extends Signup {
         this.guestAccessToken = token;
     }
 
+    setBrand(brand) {
+        this.brand = brand;
+    }
+
     getStep() {
         return this._step;
     }
@@ -131,7 +136,7 @@ class Register extends Signup {
 
         return MatrixClientPeg.get().register(
             this.username, this.password, this.params.sessionId, authDict, bindEmail,
-            this.guestAccessToken
+            this.guestAccessToken, this.brand
         ).then(function(result) {
             self.credentials = result;
             self.setStep("COMPLETE");

src/components/structures/MatrixChat.js

@@ -1160,6 +1160,7 @@ module.exports = React.createClass({
                     guestAccessToken={this.state.guestAccessToken}
                     defaultHsUrl={this.props.config.default_hs_url}
                     defaultIsUrl={this.props.config.default_is_url}
+                    brand={this.props.config.brand}
                     customHsUrl={this.getCurrentHsUrl()}
                     customIsUrl={this.getCurrentIsUrl()}
                     registrationUrl={this.props.registrationUrl}

src/components/structures/login/Registration.js

@@ -40,6 +40,7 @@ module.exports = React.createClass({
         customIsUrl: React.PropTypes.string,
         defaultHsUrl: React.PropTypes.string,
         defaultIsUrl: React.PropTypes.string,
+        brand: React.PropTypes.string,
         email: React.PropTypes.string,
         username: React.PropTypes.string,
         guestAccessToken: React.PropTypes.string,
@@ -66,6 +67,7 @@ module.exports = React.createClass({
         this.registerLogic.setRegistrationUrl(this.props.registrationUrl);
         this.registerLogic.setIdSid(this.props.idSid);
         this.registerLogic.setGuestAccessToken(this.props.guestAccessToken);
+        this.registerLogic.setBrand(this.props.brand);
         this.registerLogic.recheckState();
     },