Removed error that disallows slices with negative indexes
Removed error that disallows slices with negative indexes

jsanjuas/Nim,haiodo/Nim,jsanjuas/Nim,dom96/Nim,jfhg/Nim,singularperturbation/Nim,endragor/Nim,singularperturbation/Nim,haiodo/Nim,endragor/Nim,jfhg/Nim,jsanjuas/Nim,jsanjuas/Nim,haiodo/Nim,mbaulch/Nim,zachaysan/Nim,mbaulch/Nim,jfhg/Nim,endragor/Nim,endragor/Nim,jfhg/Nim,russpowers/Nim,russpowers/Nim,zachaysan/Nim,endragor/Nim,mbaulch/Nim,jfhg/Nim,tulayang/Nim,haiodo/Nim,endragor/Nim,zachaysan/Nim,mbaulch/Nim,tulayang/Nim,dom96/Nim,jfhg/Nim,dom96/Nim,mbaulch/Nim,russpowers/Nim,singularperturbation/Nim,zachaysan/Nim,haiodo/Nim,dom96/Nim,russpowers/Nim,haiodo/Nim,russpowers/Nim,endragor/Nim,tulayang/Nim,tulayang/Nim,zachaysan/Nim,dom96/Nim,jsanjuas/Nim,singularperturbation/Nim,tulayang/Nim,haiodo/Nim,mbaulch/Nim,zachaysan/Nim,singularperturbation/Nim,russpowers/Nim,russpowers/Nim,dom96/Nim,tulayang/Nim,zachaysan/Nim,singularperturbation/Nim,jsanjuas/Nim,jsanjuas/Nim,mbaulch/Nim,dom96/Nim,jfhg/Nim,singularperturbation/Nim