IDP offline updates easier

Hi, 

This simple script to simplify the function of downloading the IDP signatures for SRX offline, you'll need to define your device model / os version / buildn number , and this script will let you know the latest available version and download it. 

Here's the link for the script & it'll be updated with other functions, I'm also attaching the script if you just need this download part. 

https://github.com/mmento/idpofflineupdate/blob/master/idpofflineupdate.py

You can run it on unix based machines or mac os, for win it will download the files but it won't unzip them. 

hope this will help  

BR,
Mahdy