When we visited Edaville USA last month, the place was buzzing with activity — and not just from the tourists. Along the main entranceway into the theme park, sign after sign explained why we were seeing all this construction. There will be a "Thomas Land," dedicated to the storybook train, for example, as well as a water park, a Dickens-themed village, a pirate ride and a princess area. The father in front of me scanned the signs as he walked toward the ticket booth, and then turned to his wife…