Deleted the db and configuration directory except for routes.rb

Configurations were causing errors when using the gem - seemed
like duplicates of the app configuration file and were not present
in other examples I looked at.  Exception is routes.rb.

	routes.rb: modified to refer to Engine instead of Application
	Gemfile: converted to plugin form
	surveyor-gui.gemspec: move gemfile contents here
	routes.rb: convert to engine
removed surveys, public, and doc directory
Removed script directory.  Not needed for gem.
merge