Updated Flow, Prettier and other dependencies (#1362)

Author: IvanGoncharov

.flowconfig

@@ -13,4 +13,4 @@ suppress_comment=\\(.\\|\n\\)*\\$FlowFixMe\\($\\|[^(]\\|(\\(<VERSION>\\)?)\\)
 suppress_comment=\\(.\\|\n\\)*\\$FlowIssue\\((\\(<VERSION>\\)?)\\)?:? #[0-9]+
 
 [version]
-^0.71.0
+^0.73.0

package.json

@@ -56,20 +56,20 @@
     "babel-plugin-transform-flow-strip-types": "6.22.0",
     "babel-plugin-transform-object-rest-spread": "6.26.0",
     "babel-polyfill": "^6.26.0",
-    "babel-preset-env": "^1.5.2",
+    "babel-preset-env": "^1.7.0",
     "babel-register": "^6.26.0",
     "beautify-benchmark": "0.2.4",
     "benchmark": "2.1.4",
     "chai": "4.1.2",
-    "coveralls": "3.0.0",
+    "coveralls": "3.0.1",
     "eslint": "4.19.1",
     "eslint-plugin-babel": "5.1.0",
-    "eslint-plugin-flowtype": "2.46.3",
+    "eslint-plugin-flowtype": "2.48.0",
     "eslint-plugin-prettier": "2.6.0",
-    "flow-bin": "0.71.0",
-    "mocha": "5.1.1",
-    "nyc": "^11.7.1",
-    "prettier": "1.12.1",
-    "sane": "2.5.0"
+    "flow-bin": "0.73.0",
+    "mocha": "5.2.0",
+    "nyc": "^11.8.0",
+    "prettier": "1.13.3",
+    "sane": "2.5.2"
   }
 }