Map `iPhone3,1` to `iPhone 4 GSM` instead of `iPhone 4`
Fix XPath for current HTML on theiphonewiki.com
Add root filesystem decryption from iPhone OS 1.x to iPhone OS 3.x
Merge pull request #4 from 0xced/fix-theiphonewiki-scraping

Fix scraping on theiphonewiki.com
Merge pull request #5 from 0xced/decrypt-old-ipsw

Add root filesystem decryption from iPhone OS 1.x to iPhone OS 3.x