Fixes to commit so upstream pretty-cron doesn't break them
Folded in changes from master branch
Merge branch 'master' into pretty-cron

Conflicts:
	fannie/cron/memdates.fix.php
	fannie/cron/nightly.ar.php
	fannie/cron/nightly.tablecache.php
copy to Preh keyboard linux utility
slave monitoring and auto email script
Preh keytable binary files
check_slave scripts
check_slave, host array
updates to check_slave.  One email per lane failure.
check slave attemptsslave reset on fail
committing final revision of checkslave
Merge branch 'master' into pretty-cron
Migration script for cron interface overhaul