update version to 2.2

Author: retailcoder

Rubberduck.Core/Properties/AssemblyInfo.cs

@@ -31,4 +31,4 @@
 //      Buildnummer
 //      Revision
 //
-[assembly: AssemblyVersion("2.1.*")]
+[assembly: AssemblyVersion("2.2.*")]

Rubberduck.Main/Properties/AssemblyInfo.cs

@@ -34,5 +34,5 @@
 // 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("2.1.*")]
+[assembly: AssemblyVersion("2.2.*")]
 //[assembly: AssemblyFileVersion("2.1.0.0")]