Package libtool2-2.4.2-3

GNU libtool knows how to build shared libraries on a wide range of platforms. It is designed to work with autoconf to add painless shared library support to GNU packages. libtool-2.x is a major change from libtool-1.5. On darwin shared libraries built with this version will have only one symlink libfoo.dylib -> libfoo.2.dylib, not two links like on branch-1-5. There are many many major changes in this version, and very likely some bugs, please let me know if you come across any.