Setting tag BootManager-4.3-12

Setting tag BootManager-4.3-12

Moved some configuration values from BootServerRequest.py to 'configuration' file.
BootServerRequest takes the 'VARS' variable to read these values.
UPLOAD_LOG_SCRIPT can point optionally to the 'upload-bmlog.php' or 'monitor/upload'
  (or any other interface that accepts a POST file)
build.sh bundles cacerts for boot and monitor servers (if present) to
  authenticate the UPLOAD_LOG_SCRIPT.
  Previously, these certs were re-used from the bootcd, now they are bundled
  with BM.  This allows the BM to point to a completely different myplc if
  desired, and it is still secure, because the original download is
  authenticated.