Update dependencies and ava devDep

Author: RyanZim

package.json

@@ -17,22 +17,22 @@
     "test": "nyc ava -v"
   },
   "dependencies": {
-    "chalk": "^1.1.3",
+    "chalk": "^2.1.0",
     "chokidar": "^1.6.1",
     "dependency-graph": "^0.5.0",
-    "fs-extra": "^3.0.1",
+    "fs-extra": "^4.0.1",
     "get-stdin": "^5.0.1",
     "globby": "^6.1.0",
     "ora": "^1.1.0",
     "postcss": "^6.0.1",
     "postcss-load-config": "^1.1.0",
-    "postcss-reporter": "^4.0.0",
+    "postcss-reporter": "^5.0.0",
     "pretty-hrtime": "^1.0.3",
     "read-cache": "^1.0.0",
     "yargs": "^8.0.1"
   },
   "devDependencies": {
-    "ava": "^0.19.1",
+    "ava": "^0.22.0",
     "coveralls": "^2.12.0",
     "eslint": "^4.2.0",
     "eslint-config-problems": "0.0.2",