Allow modules to return facts.

If the module result contains "ansible_facts", that will be added to the setup
cache.

facter

@@ -22,4 +22,6 @@
 #    facter
 #    ruby-json
 
+echo '{ "ansible_facts":'
 /usr/bin/facter --json
+echo '}'

ohai

@@ -18,4 +18,6 @@
 # along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
 #
 
+echo '{ "ansible_facts":'
 /usr/bin/ohai
+echo '}'

setup

@@ -362,9 +362,11 @@ md5sum2 = os.popen("md5sum %s" % ansible_file).read().split()[0]
 if md5sum != md5sum2:
    changed = True
 
-setup_options['written'] = ansible_file
-setup_options['changed'] = changed
-setup_options['md5sum']  = md5sum2 
+setup_result = {}
+setup_result['written'] = ansible_file
+setup_result['changed'] = changed
+setup_result['md5sum']  = md5sum2 
+setup_result['ansible_facts'] = setup_options
 
-print json.dumps(setup_options)
+print json.dumps(setup_result)