make the upload server location a configurable parameter

ngv_frontend/ngv_frontend/lib/app_globals.py

@@ -24,3 +24,4 @@ class Globals(object):
         self.local_storage = LocalStorage(config['local_storage_path'])
 
         self.jobserver = JobServer(server=config['jobserver_url'])
+	self.uploadserver_host = config['uploadserver_host']

ngv_frontend/ngv_frontend/templates/video/files.html

@@ -15,7 +15,7 @@ file_delete_url = '${h.url_for(action='delete_file')}';
 file_reprocess_url = '${h.url_for(action='schedule_job', j_action='process')}';
 file_identify_url = '${h.url_for(action='schedule_job', j_action='identify')}';
 token = '';
-uploadserverUrl = 'http://test2a.ngvision.org/_uploadserver';
+uploadserverUrl = 'http://${g.uploadserver_host}/_uploadserver';
 //var username = '${h.logged_author().username}';
 $(document).ready(function() {
   updateTypeGroup();