Remove unsupported Python < 2.6
Remove unsupported Python < 2.6

MichaelDoyle/Diamond,tusharmakkar08/Diamond,MichaelDoyle/Diamond,tusharmakkar08/Diamond,python-diamond/Diamond,MichaelDoyle/Diamond,tusharmakkar08/Diamond,MichaelDoyle/Diamond,python-diamond/Diamond,python-diamond/Diamond,tusharmakkar08/Diamond