removed provision.py sudo; added log; added cron

cron now calls sync script every morning at 3am (hopefully)

sync script appends log entry every time run from commandline

provision script now must be called as sudo; removed sudo calls
from within script.
fixed logging; added log to gitignore
switched to conf.d
cron works - added user to command
Merge pull request #42 from dgreisen-cfpb/master

logging; crontab