Install_pin script

[bsofly]

Could this be updated to point a slightly newer version of the pin tool such as version 3.8? I would pull this tar.gz file myself but cannot find the exact name of the file on the intel website (due to unknown g number in the file name). I am unable to build this project with later versions of pin (pin 3.13 and above) but I cannot build other software with the older pin 3.7 version which the install file fetches