Packages.py: turn off make check as it depends on ISIS
Build on centos-64-5 only while in shutdown
build.py: Minor fix to avoid building package twice
make-dist.py: Minor comment fix
Make OSG compile again
Minor: Put back zula slaves
Back to using byss
BB: Must use python version >= 2.6.1
build_python_modules: Robust search for gfortran
Packages: Add lasinfo, disable make check on Mac
auto_build: Add andey