Fixup INSTALL.md

- add a big fat warning
- Do not mentioned the deprecated docker setup anymore
- Fixup docker-compose production setup

lib/tasks/db.rake

@@ -3,16 +3,13 @@
 namespace :db do
   desc 'Bootstrap the database for the current RAILS_ENV (create, setup & seed if the database does not exist)'
   task bootstrap: :environment do
-    puts 'Bootstrapping the database...'
-    begin
-      # Only do this if the database does not exist...
-      Rake::Task['db:version'].invoke
-      # rubocop:disable Style/RescueStandardError
-    rescue
-      # rubocop:enable Style/RescueStandardError
+    if ActiveRecord::Base.connection.tables.empty?
+      puts 'Bootstrapping the database...'
       Rake::Task['db:create'].invoke
       Rake::Task['db:setup'].invoke
       Rake::Task['db:seed'].invoke
+    else
+      puts 'Database exists, skipping bootstrap...'
     end
   end
 end