fix the sudo installation function name for pclunux, make it fail when needed, update #2808
updated instructions for pclinuxos, thanks to @jzakiya, update #2808
do not fake true the sudo installation on pclinuxos, update #2808
extract checking of sudo to separate function, use su -c instead on pclinuxos, update #2808
do not use ruby from current dir if there is nothing to use, fix #2893
fix ruby-1.9.2-head wit new bison, fix #2890
copy the config.log to te current log folder to ensure persistence between installations, update #2895
simplify pclinuxos requirements, update #2808
add more denbuging to fetch
bump libyaml to 0.1.6, update #2606