Merge branch 'master' into signal

docs/howto-make-dlcs.md

@@ -370,8 +370,9 @@ This approach gives you more flexibility and room for custimizations, but you
 will need to install a Python environment with all its dependencies locally.
 Additionally, you need access to the cluster discs from your local workstation.
 
-The installation procedure for wetb is outlined in the [installation manual]
-(https://gitlab.windenergy.dtu.dk/toolbox/WindEnergyToolbox/blob/master/docs/install-manual-detailed.md).
+The installation procedure for wetb is outlined in the
+[simple user](docs/install.md) or the
+[developer/contributor](docs/developer-guide.md) installation manual.
 
 
 Optional configuration

wetb/utils/cluster_tools/ssh_client.py

@@ -5,9 +5,13 @@ Created on 27/11/2015
 '''
 
 from io import StringIO
-import paramiko
-import os
 import sys
+try:
+    import paramiko
+except Exception as e:
+    sys.stderr.write("Paramiko(ssh client module) not imported\n%s"%str(e) )
+    
+import os
 import threading
 from _collections import deque
 import time