AutoExposure can be set from either URL or from links given on the page
Cleanup of PHP code. Still trying to get the image after settings change to laod (via elphel_get_frame()), but that doesn't seem to work too good. Or does it only work for long exposure times (i.e. "long" buffer times)?
FTP the files a bit more cleverly
Further cleanup. Unfortunately, the image-call with elphel_get_frame() still doesn't seem to get the correct frame, also if we use an exposure time > 100ms (which should be long enough that the buffer doesn't clear...)
Let the Nums be locked on startup!