Enhance Qualified Name Parsing

- Raise an error when entity names are missing
- Error when too many "/" are provided
- Prevent entity name that is a "."
diff --git a/whisk/wskerror.go b/whisk/wskerror.go
index 7a52888..7efcd06 100644
--- a/whisk/wskerror.go
+++ b/whisk/wskerror.go
@@ -24,6 +24,7 @@
 const EXITCODE_ERR_USAGE        int = 2
 const EXITCODE_ERR_NETWORK      int = 3
 const EXITCODE_ERR_HTTP_RESP    int = 4
+const NOT_ALLOWED               int = 149
 
 const DISPLAY_MSG       bool = true
 const NO_DISPLAY_MSG    bool = false