Refactor API Schema and validation

- /schema now returns full openapi/swagger schema
- That schema is used to validate incoming requests
- And used as a contract in future integration tests
- Moved route files up one level
- Fixed incorrect 404 reponses when getting objects
- Fixed saving new objects and passing jsonschemavalidation

backend/routes/main.js

@@ -0,0 +1,51 @@
+const express = require('express');
+const pjson   = require('../package.json');
+const error   = require('../lib/error');
+
+let router = express.Router({
+	caseSensitive: true,
+	strict:        true,
+	mergeParams:   true
+});
+
+/**
+ * Health Check
+ * GET /api
+ */
+router.get('/', (req, res/*, next*/) => {
+	let version = pjson.version.split('-').shift().split('.');
+
+	res.status(200).send({
+		status:  'OK',
+		version: {
+			major:    parseInt(version.shift(), 10),
+			minor:    parseInt(version.shift(), 10),
+			revision: parseInt(version.shift(), 10)
+		}
+	});
+});
+
+router.use('/schema', require('./schema'));
+router.use('/tokens', require('./tokens'));
+router.use('/users', require('./users'));
+router.use('/audit-log', require('./audit-log'));
+router.use('/reports', require('./reports'));
+router.use('/settings', require('./settings'));
+router.use('/nginx/proxy-hosts', require('./nginx/proxy_hosts'));
+router.use('/nginx/redirection-hosts', require('./nginx/redirection_hosts'));
+router.use('/nginx/dead-hosts', require('./nginx/dead_hosts'));
+router.use('/nginx/streams', require('./nginx/streams'));
+router.use('/nginx/access-lists', require('./nginx/access_lists'));
+router.use('/nginx/certificates', require('./nginx/certificates'));
+
+/**
+ * API 404 for all other routes
+ *
+ * ALL /api/*
+ */
+router.all(/(.+)/, function (req, _, next) {
+	req.params.page = req.params['0'];
+	next(new error.ItemNotFoundError(req.params.page));
+});
+
+module.exports = router;