Changes to this documentation

1. 2009-09-03 Added the

   Scheduler 0 Uses Schedules

   and

   Sign Geometry Override

   configuration variables to the information daemon, and the "Set Sign Geometry" & "Forget Sign Geometry" information daemon commands.
2. 2009-04-30 Added

   Raw Photocell Reading

   to the information daemon configuration variables.
3. 2009-04-06 Added an MD5 hash to the fonts description packet in the information protocol.
4. 2009-03-30 Modified event packet definition so that a duration of 0 means infinity. This behavior will start in Trafix version 1.9.9
5. 2009-03-29 Fixed the scheduler protocol documentation because certain schedules were described as using long integers, instead of 4-byte integers, which was correct.
6. 2011-03-25 Finalized the Single Port Protocol.
7. 2011-04-14 Modified the message storage format to support scrolling messages.
8. 2011-05-04 Modified the Information Daemon Protocol to add the Compact Configuration Packet
9. 2012-05-29 Modifiesd the Display Driver Protocol to make the sign status field a bitfield rather than single number.