Standardize language in configure output
Make auto-generated code more readable
Use int instead of float for some constants to shorten the code
Introduce new generic types SI and SJ (corresponding to VI and VJ)
Correct type declarations for vecmathlib's ilogb and ldexp
Correct include guard for checking whether double is supported
Regenerate vecmathlib wrapper routines
Update vecmathlib from upstream (correcting ldexp/ilogb errors)
Correct test case result