Upgrading from a previous verison

The upgrade instructions specific to each release are in doc/README_FOR_APP. However, it's worth bearing the following points in mind:

• Move your old tracks directory to tracks-old or something similar.
• Make sure that you've got the correct path for Ruby in the #!/usr/bin/ruby line at the beginning of the public/dispatch* files and script/server.
• Make sure that you've got the updated version of settings.yml. You'll need to copy over your old settings, and make sure that the new settings are to your liking.
• Back up your old database, then separately back up the contents of your old database. You'll need to create a new database, use the new schema to create the correct format for the new tables, then import your old contents. As there are new columns, you'll probably need to manually edit the contents dump of your old database before importing it. Use the example contents dump included in the distribution to check the correct format for the INSERT directives.