Require the "require ./app" or equivalent in Rakefiles to be inside an :environment block.
Allow database configuration first by file (config/database.yml), with a fallback to ENV["DATABASE_URL"].
Adds a rake db:generate:config task (for generating config/database.yml), with specs.
Adds Travis build.
Fixes 1.9.3 build; WEBrick ignores kill -TERM, so use -KILL to take it to the mat.
Be more lenient about Sinatra startup time.