Version bump to 1.9.0

Author: anaisbetts

src/Setup/Setup.rc

@@ -25,4 +25,4 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 
-[assembly: AssemblyVersion("1.8.0")]
+[assembly: AssemblyVersion("1.9.0")]

src/SolutionAssemblyInfo.cs

@@ -1,7 +1,7 @@
 <?xml version="1.0"?>
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
   <metadata>
-    <version>1.8.0</version>
+    <version>1.9.0</version>
     <authors>GitHub</authors>
     <owners>Paul Betts</owners>
     <licenseUrl>https://github.com/squirrel/Squirrel.Windows/blob/master/COPYING</licenseUrl>