Refactoring organisation, bundling and security improvements (#6765)

* * Simplified bundling to just one bundle
* Removed cache invalidation token from bundling
* Generate strong persistent random string on deploy to use for JWT signing
* WIP: moving api-secret and JWT signing to a separate centralized security component
* Moved some server components away from project root
* Fix issues reported by linter

* Ignore detect-object-injection everywhere but the client

* Make admin message button red

* Remove alarms for some security alerts on code

* api_secret is now fully contained in the enclave

tests/sensorage.test.js

@@ -5,7 +5,7 @@ var times = require('../lib/times');
 var levels = require('../lib/levels');
 
 describe('sage', function ( ) {
-  var env = require('../env')();
+  var env = require('../lib/server/env')();
   var ctx = {};
   ctx.levels = levels;
   ctx.ddata = require('../lib/data/ddata')();