Converts services to using the DAO objects
Converts Drawing management to JdbcTemplate
Rips out Hibernate and Spring ORM dependencies
Fixes logging in and viewing a scheduled drawing
Fixes adding an entry
Removes testing comment introduced in last commit
Fixes entry calculations for tiers

This commit reassociates entries with tiers. This means that whenever
a tier is retrieved from the database, it is possible that a list of
entries will be built at the same time.