Changed name of daily_backup.sh to daily_checkpoint.sh
Changed name of weekly_backup.sh to recreate_db_checkpoint.sh
Updated crontabs with new names, and changed to run recreate_db_checkpoint
on the 1st Sat. of Jan. and July. For most companies, this is a better
practice than recreating weekly per discussion with Anton.
Remove solaris crontab since Solaris is pretty much dead, and we don't test on it.
Updated docs to reflect name changes, and did a little clean other other sections
while I was in there.