Update to latest version of prettier (#134)

.prettierrc

@@ -0,0 +1,7 @@
+{
+    "printWidth": 100,
+    "tabWidth": 4,
+    "singleQuote": true,
+    "trailingComma": "es5",
+    "jsxBracketSameLine": true
+}

package.json

@@ -4,7 +4,7 @@
     "description": "Store implementation for functional reactive flux.",
     "lint-staged": {
         "*.{ts,tsx}": [
-            "prettier --tab-width 4 --print-width 100 --write --trailing-comma es5 --jsx-bracket-same-line --single-quote",
+            "prettier --write",
             "git add"
         ]
     },
@@ -34,7 +34,7 @@
         "mobx": "^4.4.0",
         "mobx-react": "^5.2.0",
         "npm-run-all": "^4.0.2",
-        "prettier": "~1.5.2",
+        "prettier": "^1.19.1",
         "react": "15.4.2",
         "react-addons-test-utils": "~15.4.0",
         "react-dom": "15.4.2",

yarn.lock

@@ -3262,9 +3262,10 @@ prelude-ls@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.1.2.tgz#21932a549f5e52ffd9a827f570e04be62a97da54"
 
-prettier@~1.5.2:
-  version "1.5.3"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.5.3.tgz#59dadc683345ec6b88f88b94ed4ae7e1da394bfe"
+prettier@^1.19.1:
+  version "1.19.1"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
+  integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
 
 pretty-format@^24.5.0:
   version "24.5.0"