redmine: execute all rake tasks as www-data user
redmine: specify production environment for all rake tasks
Merge branch 'feature/fix-rake-tasks'
redmine: removed the app:db:initialize command
redmine: merged the db_initialize function into db_migrate function
redmine: always call db_migrate in app:start
README: removed references to app:db:initialize command
README: removed the DB_INIT documentation
Merge branch 'feature/always-migrate'
install: exit install script if passenger could not be installed.
install: exit script if bundle install fails
redmine: kickstart the app
plugins: install recurring tasks plugin