Normation/rudder-techniques — pull request #7 by ncharles (2012-12-04 18:06:33+00:00)
Title: Fixes #2642 : add a warning message if the node cannot connect to the server

Adding warning message on the initial promises and on the common technique to warn if the node cannot contact the server
The warning is at two different places to have it always dsplayed at the end of the execution for
* the failsafe execution
* the normal execution