Add file uploader support

src/app/service/api.service.ts

@@ -48,7 +48,7 @@ export class ApiService {
     });
   }
 
-  private _build_url(endpoint) {
+  public _build_url(endpoint) {
     if ( !endpoint.startsWith('/') ) {
       endpoint = `/${endpoint}`;
     }

src/app/service/page.service.ts

@@ -52,7 +52,6 @@ export class PageService {
   }
 
   save_nodes(page: PageRecord, nodes: Array<HostRecord>): Observable<Array<HostRecord>> {
-    console.log('save nodes', {nodes})
     return new Observable<Array<HostRecord>>(sub => {
       nodes = nodes.map(x => {
         x.PageId = page.UUID;