Updating CHANGELOG to include compliance with RubySpec for Array#combination, Array#permutation, Array#values_at, Array#rotate and Array#rotate
Updating CHANGELOG to include compliance with RubySpec for Array#combination, Array#permutation, Array#values_at, Array#rotate and Array#rotate

suyesh/opal,iliabylich/opal,Flikofbluelight747/opal,gabrielrios/opal,c42engineering/opal,gabrielrios/opal,merongivian/opal,fazibear/opal,iliabylich/opal,jgaskins/opal,kachick/opal,jgaskins/opal,jannishuebl/opal,c42engineering/opal,opal/opal,Mogztter/opal,gausie/opal,Ajedi32/opal,wied03/opal,suyesh/opal,kachick/opal,opal/opal,Mogztter/opal,jannishuebl/opal,bbatsov/opal,Flikofbluelight747/opal,merongivian/opal,gausie/opal,wied03/opal,c42engineering/opal,suyesh/opal,merongivian/opal,opal/opal,Flikofbluelight747/opal,bbatsov/opal,Mogztter/opal,Ajedi32/opal,wied03/opal,jgaskins/opal,fazibear/opal,bbatsov/opal,kachick/opal,gabrielrios/opal,jannishuebl/opal,Ajedi32/opal,opal/opal,fazibear/opal,gausie/opal,Mogztter/opal,iliabylich/opal,kachick/opal