Merge branch 'master' of github.com:fraction/oasis into mediator

src/cli.js

@@ -6,12 +6,19 @@ module.exports = () =>
   yargs
     .scriptName('oasis')
     .env('OASIS')
+    .help('h')
+    .alias('h', 'help')
     .usage('Usage: $0 [options]')
     .options('open', {
-      describe: 'Automatically open app in web browser',
+      describe: 'Automatically open app in web browser.  Use --no-open to disable.',
       default: true,
       type: 'boolean'
     })
+    .options('offline', {
+      describe: "Don't try to connect to scuttlebutt peers or pubs",
+      default: false,
+      type: 'boolean'
+    })
     .options('host', {
       describe: 'Hostname for web app to listen on',
       default: 'localhost',