Rev 0.01
--Initial revision.  Not fully tested.
--Fixed the luma bar graticule offset in composite.
--Added "Dolby PL" to the display.
--Added audio scale to the display.
--When in the setup menu, the up and down arrows on the keyboard move the menu selection up and down.
--Preset selection has been added as a GPI function.

Rev 0.03
--Added audio scale variable zoom 
--Fixed 0.1dB difference in meter reading between VU and Peak ballistics
--The mouse is now reacquired when disconnected and reconnected.
--Audio scale type is now displayed in the audio window.

Rev 0.04
--Modified "Audio Not Installed" text to only display for 5 seconds after power-up and to appear for 5 seconds when the user presses the audio zoom button.

Rev 0.05
--Default audio zoom center is now 0.
--Modified the zoom offset for DIN and dBFS scales.

Rev 0.06
--Fixed a typo on Audio Peak and Loss of Sound alarms where the 'd' was missing from 'dB'.
--Panel Lock LED is working correctly now.
--Fixed a problem with the metadata display not allowing the user to scroll after the Exit/Clear button was pressed when in the metadata menu.

Rev 0.07
--Support for Enhanced Remote added

Rev 0.08
--Fixed a problem with audio zoom range through SpyderWeb
--SNMP is fully implemented now

Rev 3.00
--SNMP is working now.

Rev 3.01
--Fixed a problem where the alarms paused indication was overwriting the audio presence display.
--DIN scale now reaches +5 db in audio zoom.
--Phase cursor cannot become the active cursor now when gamut is enabled.
--Up and down arrows are working from the keyboard now.
--Changed the location of the alarms paused window when the audio presence or lip sync displays are active.

Rev 3.02
--Fixed the 0.1 dB difference between all meter responses except loudness.
--Zoom meters now display yellow and red meter sections.
--DIN scale does not go below -50 now.
--DBFS scale is updated depending on reference.
--SNMP: GPIO extended functions are working correctly now.
--SNMP: BCH error detect alarm can now be set from SNMP.
--SNMP: Reserved alarm bits are now masked.

Rev 3.03
--Fixed an offset on the duration of audio peak and loss of sound alarms.
--Changed the lower limits of the Zero Ref DBFS scale when in zoom mode.
--GPIO Input functions are working correctly from SNMP now.
--Masked reserved bits that were causing errors on closed caption alarm enables.

Rev 3.04
--Preset LED flashes now when recalling a preset
--Audio scale text is erased when data display is enabled.

Rev 3.05
--The bypass key now flashes when in bypass mode and the user presses any front panel button.
--The smart keys now flash when prompted to save.
--The Next button led is now high tally for all displays except for quad display.
--The Edit/Clear button now goes high tally for 0.5 seconds when pressed and active.
--Smart keys are now illuminated at high tally when active.

Rev 3.06
--All new buttons on the EFPI RCU work with the old front panel VTM.

Rev 3.07
--Fixed a problem with alarms paused window overwriting metadata display.

Rev 3.08
--Fixed a problem where the Edit/Clear button was not lit when in A+B mode, 1H and 1V modes.
--Fixed a problem where 32 characters were not being correctly displayed after an EIA708 rollup.

Rev 3.09
--Fixed a problem with 708 closed caption missing characters.

Rev 3.10
Audio markers are now accurate for Zero Ref DBFS and Type I+8 scales now.
The active cursor is not changed now when disabling another cursor.
Panel Lock LED is operating correctly now for the RCU.

Rev 3.11
The remote responds faster now.

Rev 3.12
The Type IIa scale audio markers reach the top of the scale now.

Rev 3.13
Fixed a problem where the metadata display was distorted when the input was analog video and the lip-sync display was enabled.
Changed the polarity of the aes validity bit check for SNMP.
The VTM can be controlled from SpyderWeb when the panel is locked now.
Fixed a problem where Dolby metadata was not displayed when analog video was selected and the CRC display is enabled.
Audio zoom and input buttons are working from SNMP now.
Added reference select, safe area, and DC restore to SNMP.

Rev 3.14
Added refSelect per input to SNMP.
Fixed a problem with the smart keys not working through SNMP.

Rev 3.15
Fixed a problem with the phase cursor not flashing when Gamut display was disabled and the phase cursor was enabled.

Rev 3.16
Fixed a problem where the remote tally level menu was displayed when connected to a non-enhanced front panel.

Rev 3.17
New flex file to fix a problem with popping noises on analog outputs.

Rev 3.18
Fixed a problem the timing display not being completely cleared after displaying a capture.

Rev 3.19
Fixed a problem where the data display was overwriting the lip sync display.

Rev 3.21
Optimize for input has been expanded to include all formats that do not
operate at 60 or 59.94Hz.

Rev 3.25
Fixed bug where VTM-450 Locks up when switching Audio Type with Dolby D embedded source.
Added the musical note symbol to EIA-708 close captions.
Modified the behaviour of the Aspect Ratio Picture menu - it now species the aspect ratio of the input signal.
Modified Peak Hold so that it only clears the peaks on user command or input change.
Swapped the 'Delayed' and 'Advanced' lables on the timing display.

Rev 3.26
Improved embedded audio processing by removing Z bit sync dependancy.
(Option 9 FPGA update)

Rev 3.27
Improved embedded audio processing by removing Z bit sync dependancy.
(Option 9 FPGA update) (Fixed)

Rev 3.28
Fixed TestTrack item 4150 - "Cursors, VTM 450   V 3.25  Graphics issue."
This issue caused the delta symbol to be replaced by a musical note.

Rev 3.29
Second attempt to fix TT#4150.