update version number

Author: jayt

ImpromptuInterface/Properties/AssemblyInfo.cs

@@ -46,4 +46,4 @@
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.4.0.*")]
+[assembly: AssemblyVersion("2.0.0.*")]