Merge pull request #32 from altsai/master

fix bugs
Merge pull request #33 from altsai/master

add buri eng
added buildID support on Linux [auto_flash_from_PVT.sh]
modified the seqence of flash mode in command mode [auto_flash_from_PVT.sh]
Modified the if condition of build id [auto_flash_from_PVT.sh]
Added download failed message for wget [auto_flash_from_PVT.sh]