slapos-master: Version up facebook-sdk

  The version 0.4.0 uses an deprecated version of 
  GraphAPI which might not work anymore.

software/slapos-master/software.cfg

@@ -67,6 +67,6 @@ filename = instance-create-erp5-site-real.cfg.in
 
 [versions]
 python-memcached = 1.47
-facebook-sdk = 0.4.0
+facebook-sdk = 2.0.0
 erp5diff = 0.8.1.6