New version of Clara

- Clara now built with new stitch script (based on generateSingleInclude)
- also fixed python scripts for python 3 (print now a function rather than a keyword)

include/internal/catch_version.hpp

@@ -13,7 +13,7 @@
 namespace Catch {
 
     // These numbers are maintained by a script
-    Version libraryVersion( 1, 0, 26, "master" );
+    Version libraryVersion( 1, 0, 27, "master" );
 }
 
 #endif // TWOBLUECUBES_CATCH_VERSION_HPP_INCLUDED