#2 outdated sql script and install directions

[Gabe Martin]

When following the directions in INSTALL to setup the
database it recommends running the workout.sql script
to update the database. This file is outdated and
workout_schema.sql must be used instead. Either:
1. update workout.sql with the missing entries found in
workout_schema.sql and delete workout_schema.sql
OR
1. cvs remove workout.sql
2. update INSTALL file so it references workout_schema.sql.

Thanks.