apps-imgsrv recipe adds updated Exif template and PHP script to rootfs.
The template contains one new filed(PageNumber) and two existing fields were updated:
HostComputer was replaced with CameraSerialNumber and IPTCNAA containing
frame number was replaced with ImageNumber.
udev-rules recipe update addresses build error.

ahci_elphel automatically loads upon system start up despite the fact
that it was not listed in KERNEL_MODULE_AUTOLOAD variable in bitbake
recipe. The module was blacklisted in /etc/modprobe.d/blacklist.conf