Version 6.6.004 for conan.io

AST made of shared pointers

6.6.003 from sourcefourge

6.5.020 release from sourceforge

6.3.011 from: http://sourceforge.net/projects/lrstar/files/

6.3.008 from http://sourceforge.net/projects/lrstar/files/

6.3.007 version from http://sourceforge.net/projects/lrstar/files/