make AbstractNuxeoWebService not hide the cause of error in the connect method implementation

Here is the offending code:

— a/nuxeo-platform/src/main/java/org/nuxeo/ecm/platform/ws/AbstractNuxeoWebService.java
+++ b/nuxeo-platform/src/main/java/org/nuxeo/ecm/platform/ws/AbstractNuxeoWebService.java
@@ -87,7 +87,7 @@ public abstract class AbstractNuxeoWebSe
loginContext.logout();
sid = _connect(username, password, repository);
} catch (Exception e)

{ - throw new ClientException(e.getMessage()); + throw new ClientException(e.getMessage(), e); }

return sid;
}

Otherwise encoding errors while loading the default CSV content of directories might prevent any WS connections without giving the sys admin any info on the cause of the problem.