Added ext extract rules; fixed squashfs extract bug.
Added ext extract rules; fixed squashfs extract bug.

sviehb/binwalk,sviehb/binwalk,sundhaug92/binwalk,draekko/binwalk,cappiewu/binwalk,draekko/binwalk,UniqMartin/binwalk,geekspeed/binwalk,zhuyue1314/binwalk,naterh/binwalk,Flameeyes/binwalk,cappiewu/binwalk,AmesianX/binwalk,emprovements/binwalk,ddcc/binwalk,pyq881120/binwalk,devttys0/binwalk,AmesianX/binwalk,MaiPhuoc/binwalk,itsens/binwalk,hyper-xx/binwalk,Flameeyes/binwalk,pombredanne/binwalk,anthraxx/binwalk,geekspeed/binwalk,ddcc/binwalk,devttys0/binwalk,jiangbing9293/binwalk,naterh/binwalk,thx0701/binwalk,chubbymaggie/binwalk,itsens/binwalk,WooyunDota/binwalk,jiangbing9293/binwalk,thx0701/binwalk,cristianst85/binwalk,peterdocter/binwalk,pombredanne/binwalk,goofwear/binwalk,UniqMartin/binwalk,gale320/binwalk,Eih3/binwalk,WooyunDota/binwalk,chubbymaggie/binwalk,foreni-packages/binwalk,peterdocter/binwalk,goofwear/binwalk,Eih3/binwalk,foreni-packages/binwalk,hyper-xx/binwalk,gale320/binwalk,foreni-packages/binwalk,cristianst85/binwalk,pyq881120/binwalk,emprovements/binwalk,anthraxx/binwalk,zhuyue1314/binwalk,MaiPhuoc/binwalk,sundhaug92/binwalk