Simple code cleanup (tabs to spaces)

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk/src/plugins/gateway@4382 b35dd754-fafc-0310-a699-88a17e54d16e

src/i18n/gateway_i18n.properties

+login.title=Admin Console
 externalgateway.startup=Started external gateway {0}.
 externalgateway.filenotfound=Configuration file {0} not found: {1}
 externalgateway.invalidconfig=Invalid configuratino file: {0}