added module.exports to js extension adapter.

Signed-off-by: Daniel Fagnan <dnfagnan@gmail.com>
more documentation

Signed-off-by: Daniel Fagnan <dnfagnan@gmail.com>
output specifier

Signed-off-by: Daniel Fagnan <dnfagnan@gmail.com>
added a coffee-script extension adapter

Signed-off-by: Daniel Fagnan <dnfagnan@gmail.com>
added template for other extensions.

Signed-off-by: Daniel Fagnan <dnfagnan@gmail.com>