LattE integrale 1.7.6

Changes in release 1.7.6, 2021-03-17:

This is a portability release.

• Fix for new NTL versions

• Find cddlib headers in new installation location (cddlib/...)

• Remove problematic code and compiler options

LattE integrale 1.7.5

This is a portability release.

• Fix compilation errors for NTL version >= 9: don't depend on NTL_STD_CXX macro

• Fix runtime errors for NTL builds with NTL_RANGE_CHECK=on and for NTL version >= 11

LattE integrale 1.7.4 "festa del lavoro 2018"

This is a bugfix and portability release.