Updated easy_install.sh to work with older bash versions.
Updated easy_install.sh to work with older bash versions.

foreni-packages/binwalk,foreni-packages/binwalk,UniqMartin/binwalk,UniqMartin/binwalk,cappiewu/binwalk,devttys0/binwalk,goofwear/binwalk,AmesianX/binwalk,peterdocter/binwalk,Flameeyes/binwalk,sviehb/binwalk,zhuyue1314/binwalk,goofwear/binwalk,AmesianX/binwalk,sundhaug92/binwalk,cappiewu/binwalk,itsens/binwalk,pyq881120/binwalk,pombredanne/binwalk,jiangbing9293/binwalk,naterh/binwalk,chubbymaggie/binwalk,0x7678/binwalk,jiangbing9293/binwalk,thx0701/binwalk,anthraxx/binwalk,geekspeed/binwalk,cristianst85/binwalk,hyper-xx/binwalk,foreni-packages/binwalk,gale320/binwalk,hyper-xx/binwalk,Eih3/binwalk,thx0701/binwalk,MaiPhuoc/binwalk,cristianst85/binwalk,pombredanne/binwalk,ddcc/binwalk,Eih3/binwalk,anthraxx/binwalk,sundhaug92/binwalk,zhuyue1314/binwalk,naterh/binwalk,MaiPhuoc/binwalk,emprovements/binwalk,geekspeed/binwalk,chubbymaggie/binwalk,sviehb/binwalk,gale320/binwalk,draekko/binwalk,peterdocter/binwalk,Flameeyes/binwalk,itsens/binwalk,WooyunDota/binwalk,draekko/binwalk,ddcc/binwalk,pyq881120/binwalk,devttys0/binwalk,WooyunDota/binwalk,emprovements/binwalk