ignoring cache, run, logs, and config.php
Gimme_Cron updates

* Using the path to crontab to avoid DH wrapper
* Add/Remove/Find Line functions now expect arrays
updates for cron related functions

* cron_command now sets MAILTO="" line
* using explode to generate array of new cron_command splitting on
newline
* when removing cron we need to remove the old cron command as well as
the new
* when checking for the cronjob, check for the old command as well as
the new