Allow dots in value of public option (#428)

package.json

@@ -40,7 +40,7 @@
     "ajv": "6.5.1",
     "arg": "2.0.0",
     "chalk": "2.4.1",
-    "serve-handler": "3.2.0",
+    "serve-handler": "3.2.1",
     "update-check": "1.5.2"
   }
 }

yarn.lock

@@ -34,8 +34,8 @@ acorn@^3.0.4:
   resolved "https://registry.yarnpkg.com/acorn/-/acorn-3.3.0.tgz#45e37fb39e8da3f25baee3ff5369e2bb5f22017a"
 
 acorn@^5.5.0:
-  version "5.6.2"
-  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.6.2.tgz#b1da1d7be2ac1b4a327fb9eab851702c5045b4e7"
+  version "5.7.1"
+  resolved "https://registry.yarnpkg.com/acorn/-/acorn-5.7.1.tgz#f095829297706a7c9776958c0afc8930a9b9d9d8"
 
 ajv-keywords@^2.1.0:
   version "2.1.1"
@@ -818,9 +818,9 @@ semver@^5.3.0:
   version "5.5.0"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.5.0.tgz#dc4bbc7a6ca9d916dee5d43516f0092b58f7b8ab"
 
-[email protected].0:
-  version "3.2.0"
-  resolved "https://registry.yarnpkg.com/serve-handler/-/serve-handler-3.2.0.tgz#c94015abf09471ece634c32d221f4b0f36500f0b"
+[email protected].1:
+  version "3.2.1"
+  resolved "https://registry.yarnpkg.com/serve-handler/-/serve-handler-3.2.1.tgz#522f1df51172cadbb00409bda196565a8c73ba64"
   dependencies:
     bytes "3.0.0"
     content-disposition "0.5.2"