build: replace circular-json with flatted

Fixes #2

package.json

@@ -10,6 +10,7 @@
   "scripts": {
     "build": "npm run tslint && npm run compile && npm run documentation",
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0",
+    "check-configuration": "openstapps-configuration",
     "compile": "tsc",
     "documentation": "typedoc --includeDeclarations --excludeExternals --mode modules --out docs src",
     "prepublishOnly": "npm run build",
@@ -24,45 +25,48 @@
   "typings": "./lib/Logger.d.ts",
   "main": "./lib/Logger.js",
   "nyc": {
+    "all": true,
+    "branches": 95,
     "check-coverage": true,
-    "per-file": true,
-    "lines": 0,
-    "statements": 0,
-    "functions": 0,
-    "branches": 0,
-    "include": [
-      "src"
+    "exclude": [
+      "src/test/**/*.spec.ts",
+      "src/cli.ts"
     ],
     "extension": [
       ".ts"
     ],
+    "functions": 95,
+    "include": [
+      "src"
+    ],
+    "lines": 95,
+    "per-file": true,
     "reporter": [
       "html",
       "text-summary"
     ],
-    "all": true
+    "statements": 95
   },
   "devDependencies": {
-    "@openstapps/configuration": "0.5.0",
+    "@openstapps/configuration": "0.6.0",
     "@types/chai": "4.1.7",
-    "@types/mocha": "5.2.5",
-    "@types/sinon": "7.0.3",
+    "@types/mocha": "5.2.6",
+    "@types/sinon": "7.0.6",
     "chai": "4.2.0",
     "conventional-changelog-cli": "2.0.11",
     "mocha": "5.2.0",
     "mocha-typescript": "1.1.17",
-    "nyc": "13.1.0",
-    "sinon": "7.2.2",
-    "ts-node": "7.0.1",
-    "tslint": "5.12.0",
-    "typedoc": "0.14.0",
-    "typescript": "3.2.2"
+    "nyc": "13.2.0",
+    "sinon": "7.2.3",
+    "ts-node": "8.0.2",
+    "tslint": "5.12.1",
+    "typedoc": "0.14.2",
+    "typescript": "3.3.3"
   },
   "dependencies": {
-    "@types/circular-json": "0.4.0",
-    "@types/node": "10.12.18",
-    "@types/nodemailer": "4.6.5",
-    "circular-json": "0.5.9",
+    "@types/node": "11.9.3",
+    "@types/nodemailer": "4.6.6",
+    "flatted": "2.0.0",
     "nodemailer": "5.1.1"
   }
 }