Added a new tab for the mapgrid object
Changed the name of the source file.
Make the identifier for the custom fields generic, rather than specific in here
Century Link variants
Added more sensitivity to where the data is coming from
Added the first pieces to generating the engine config code for Echo
Stripped out the Echo engine builder into its own file
Tidied up the field's showMe()
Handled better the engine-specific xml and multiple targets.
This is now creating the whole of the echo xml, not just part of it.