remove temporary file before extracting
add timeout (default to 1 day)

as extract/prepare commands might take very long, especially longer
than the 1h default timout
add attributes for stxxl settings
move setting default variables to providers

setting node attributes in resources doesn't respect overriden
attributes
set threads/memory in attributes
move setting all remaining attributes to providers
use execute "rm -f" instead of file action :delete

as it is very slow when deleting big files
use stxxl_size as indicator whether to set custom stxxl options
delete stxxl temporary file after extraction
use system_mem - 1gb as default for all cases
update version and changelog