Build virtualenv using the Makefile

Add tidy target (don't use yet as there's a bug)

Make lint target cover all the files

Start at documentation generation using libdoc/testdoc within robot

Change-Id: I8117baf4bd006588ae9383e0731c49e17102348c
diff --git a/libraries/utils.robot b/libraries/utils.robot
index db67643..e303379 100644
--- a/libraries/utils.robot
+++ b/libraries/utils.robot
@@ -31,5 +31,4 @@
     # check voltctl and kubectl configured
     ${voltctl_rc}=    Run And Return RC    ${VOLTCTL_CONFIG}; voltctl device list
     ${kubectl_rc}=    Run And Return RC    ${KUBECTL_CONFIG}; kubectl get pods
-    Run Keyword If    ${voltctl_rc} != 0 or ${kubectl_rc} != 0    FATAL ERROR
-    ...    VOLTCTL and KUBECTL not configured. Please configure before executing tests.
+    Run Keyword If    ${voltctl_rc} != 0 or ${kubectl_rc} != 0    FATAL ERROR    VOLTCTL and KUBECTL not configured. Please configure before executing tests.