Upgrade deps

Author: boopathi

yarn.lock

@@ -1628,8 +1628,8 @@ [email protected], escodegen@^1.6.1:
     source-map "~0.2.0"
 
 eslint-plugin-flowtype@^2.36.0:
-  version "2.36.0"
-  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.36.0.tgz#ec21cf685dc270c2b24a99bdba1a57999c1040ec"
+  version "2.39.1"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-flowtype/-/eslint-plugin-flowtype-2.39.1.tgz#b5624622a0388bcd969f4351131232dcb9649cd5"
   dependencies:
     lodash "^4.15.0"
 
@@ -1657,8 +1657,8 @@ eslint-scope@^3.7.1:
     estraverse "^4.1.1"
 
 eslint@^4.1.0:
-  version "4.7.2"
-  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.7.2.tgz#ff6f5f5193848a27ee9b627be3e73fb9cb5e662e"
+  version "4.8.0"
+  resolved "https://registry.yarnpkg.com/eslint/-/eslint-4.8.0.tgz#229ef0e354e0e61d837c7a80fdfba825e199815e"
   dependencies:
     ajv "^5.2.0"
     babel-code-frame "^6.22.0"
@@ -3457,8 +3457,8 @@ preserve@^0.2.0:
   resolved "https://registry.yarnpkg.com/preserve/-/preserve-0.2.0.tgz#815ed1f6ebc65926f865b310c0713bcb3315ce4b"
 
 prettier@^1.7.2:
-  version "1.7.2"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.7.2.tgz#81371e64018aafc69cf1031956c70e029339f54e"
+  version "1.7.4"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.7.4.tgz#5e8624ae9363c80f95ec644584ecdf55d74f93fa"
 
 pretty-hrtime@^1.0.0:
   version "1.0.3"