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/.gitignore b/.gitignore
new file mode 100644
index 0000000..ad8b8eb
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,7 @@
+# python virtualenv
+vst_venv
+
+# robot framework output
+output.xml
+report.xml
+log.html