added string_list_to_file
added with_out_file and use it
simpler string_list_to_file since Printf is already opened on top
added bootstrap script for developpers
the dev_bootstrap is allowed to override OCAMLOPT
rm
Merge branch 'dev_bootstrap' of github.com:UnixJunkie/obuild into dev_bootstrap
while we are at it, let's generate a TAGS file