add Sebastien Binet to CONTRIBUTORS
add Juan Batiz-Benet to CONTRIBUTORS
doc: fix link to hwaf (hwaf uses the new API)
doc: markdown cosmetics
add support for custom stdout and stderr
Merge pull request #7 from uwedeportivo/master

add support for custom stdout and stderr
don't sort commands
different tmpl
use jbenet/commander in my fork.
bugfix: nil .Parent in template