update dependencies

shadowsocks-csharp/FodyWeavers.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Weavers>
-  <Caseless StringComparison="Ordinal" />
-  <Costura />
+  <Caseless StringComparison="Ordinal"/>
+  <Costura/>
 </Weavers>

shadowsocks-csharp/packages.config

@@ -1,13 +1,13 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Caseless.Fody" version="1.4.0" targetFramework="net40-client" developmentDependency="true" />
-  <package id="Costura.Fody" version="1.3.3.0" targetFramework="net4-client" developmentDependency="true" />
+  <package id="Caseless.Fody" version="1.4.1" targetFramework="net40-client" developmentDependency="true" />
+  <package id="Costura.Fody" version="1.3.3.0" targetFramework="net40-client" developmentDependency="true" />
   <package id="Fody" version="1.29.4" targetFramework="net40-client" developmentDependency="true" />
   <package id="Microsoft.Bcl" version="1.1.10" targetFramework="net40-client" />
   <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net40-client" />
   <package id="Microsoft.Bcl.Build" version="1.0.21" targetFramework="net40-client" />
   <package id="Microsoft.Net.Http" version="2.0.20710.0" targetFramework="net4-client" />
   <package id="Newtonsoft.Json" version="8.0.2" targetFramework="net40-client" />
-  <package id="StringEx" version="0.2" targetFramework="net40-client" />
+  <package id="StringEx.CS" version="0.2" targetFramework="net40-client" />
   <package id="System.Net.Http" version="2.0.20710.0" targetFramework="net40-client" />
 </packages>