Include issue view for errors.
Use hash to set connection arguments.

- Create and set db_connection_info in Sinatra configuration settings.
- Only set relevant connection arguments.
Add detailed checks for ping errors.

- Check for the four responses that can be returned with the ping method.
- Pass the error info to the issue view and display it.
Add method to handle building locals hash for views.

- Pass the page specific title to build in the new method.
- New method will merge the optional rest parameter (hash) with the title.
Ignore Mac OS X files in git.
Limit when new db connection is created.

- Only connect to db if @connect instance variable is nil.
Include Sequel gem and use as db connection.

- Add Sequel dependency to Gemfile.
- Connect to Postgres with Sequel.
Refactor db ping test into method.