Set up the new template access keys in $gfpdfe_data.
Start working on a migration method
Add some documentation
- Fix up notification messages

- Fix system status
- Move back to FontAwesome which Gravity Form loads by default
- Ensure migration will only run if not already 'migrated'.
Update plugin to use new $gfpdfe template variables instead of the depreciated constants
Fix issue with using wrong template variable in $gfpdfe_data
Minor type fix