added missing bootstrap.redhat.sh
bootstrap.centos: fixed missing git pkg install
bootstrap.{centos,redhat} use perl lib CryptSSLeay for SSL

replaced Net::SSLeay with CryptSSLeay (Net::SSL) due to a memleak in
Net::SSLeay. This had already been fixed in the main install.
lib/perl5/LW2.pm: fixed previous dumb SSL "fix"
install/pack-bootstrap: ignore backup files when packing