Fix for Ruby 1.9.3 2014.03 1.0.3 which adds line to edited file

Changing sed command to search for line which inserted item must come after and then insert there using back reference. Original code now inserts on wrong line with Ruby 1.9.3 2014.03 1.0.3 which adds a line to 10_bundle_install.sh making "6" incorrect. This was the safest and backward compatible way to address.