Added compatibility with dbvis <= 6

Checking for "config" folder existence if "config70" is not found.

modules/post/multi/gather/dbvis_enum.rb

@@ -62,10 +62,19 @@ class Metasploit3 < Msf::Post
       dbvis_file = user_profile + "\\.dbvis\\config70\\dbvis.xml"
     end
 
+    unless file?(dbvis_file)
+      print_status("File not found: #{dbvis_file}")
+      print_status("This could be an older version of dbvis, trying old path")
+      when /linux/
+      	dbvis_file = "#{user_base}.dbvis/config/dbvis.xml"
+      when /win/
+      	dbvis_file = user_profile + "\\.dbvis\\config\\dbvis.xml"
+      end
       unless file?(dbvis_file)
         print_error("File not found: #{dbvis_file}")
         return
       end
+    end
     
     db = {}
     print_status("Reading: #{dbvis_file}")