Added another test for fread encoding, #563.
Added another test for fread encoding, #563.

jangorecki/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,vlulla/data.table,Rdatatable/data.table,jangorecki/data.table,Rdatatable/data.table,jangorecki/data.table,vlulla/data.table,vlulla/data.table,jangorecki/data.table