Database schema changes for Trac 0.7

[jonas]

Several changes scheduled for Trac 0.6 will require changes to the database schema. This ticket will be used to track those changes.

When 0.6 is released it should be able to automatically upgrade an existing database to the new version. This might not be true during the development phase though.

[jonas]

There will be no schema changes until 0.7

[jonas]

• All text should be converted to utf-8.
• A keyword field should be added to ticket.

[daniel]

#161 requires a description text column in the report table.

[daniel]

#233 requires a keywords text column in the ticket table.

[jonas]

All known/scheduled changes for trac 0.7 are done in [380].