Juvenile Justice; Requiring a court to determine, for any delinquent child committed to the Department of Juvenile Justice, the minimum period of time rather than an indeterminate period of time for the child to remain in a commitment program; requiring that the delinquent child remain in the commitment program until he or she has completed it; revising the age at which children who have been adjudicated on specified offenses may be committed to maximum-risk residential facilities to include children who are at least 10 years of age, etc.