twist should be 0 by default.
Merging in Monday's changes
Added a mutex for Sensors. Telemetry should now report temps even if camera is disconnected
Added readFITSHeader function. Currently only reads time values.
Added ntp.conf to configure ntpd, added commands to configure it in install.sh
Adding a copy of the ntpd.service file running in the SAS cans for posterity
Removed the mkdir call from install.sh, adding it to proc instead.
install.sh now just copies the ntp.conf file and enables the service.
Merge pull request #148 from akcramer/master

NTP Configuration