Move to hourly instead of daily logrotation.
Rotate hourly.
Add a post-rotate hook to restart syslog.
Merge pull request #1240 from edx/feanil/hourly_logrotate

Feanil/hourly logrotate
Vagrantfiles for Johnnycake

New logic to use VBOXFS using enviorment variables

Bringing base Vagrantfile more inline with release Vagrantfile