Adding edit of incoming webhook (#5272)

Adding edit of outgoing webhook
Fixing spelling of error
Fixing style
Changing from PUT to POST for updates
Fixing test failures due to merge

webapp/client/client.jsx

@@ -1975,6 +1975,18 @@ export default class Client {
         this.trackEvent('api', 'api_integrations_created', {team_id: this.getTeamId()});
     }
 
+    updateIncomingHook(hook, success, error) {
+        request.
+            post(`${this.getHooksRoute()}/incoming/update`).
+            set(this.defaultHeaders).
+            type('application/json').
+            accept('application/json').
+            send(hook).
+            end(this.handleResponse.bind(this, 'updateIncomingHook', success, error));
+
+        this.trackEvent('api', 'api_integrations_updated', {team_id: this.getTeamId()});
+    }
+
     deleteIncomingHook(hookId, success, error) {
         request.
             post(`${this.getHooksRoute()}/incoming/delete`).
@@ -2008,6 +2020,18 @@ export default class Client {
         this.trackEvent('api', 'api_integrations_created', {team_id: this.getTeamId()});
     }
 
+    updateOutgoingHook(hook, success, error) {
+        request.
+            post(`${this.getHooksRoute()}/outgoing/update`).
+            set(this.defaultHeaders).
+            type('application/json').
+            accept('application/json').
+            send(hook).
+            end(this.handleResponse.bind(this, 'updateOutgoingHook', success, error));
+
+        this.trackEvent('api', 'api_integrations_updated', {team_id: this.getTeamId()});
+    }
+
     deleteOutgoingHook(hookId, success, error) {
         request.
             post(`${this.getHooksRoute()}/outgoing/delete`).