change dev version to 5.1.0-BETA4
change dev version to 5.1.0-BETA4

luiseduardohdbackup/diem,luiseduardohdbackup/diem,PolibudaInfo/diem,PolibudaInfo/diem,luiseduardohdbackup/diem,luiseduardohdbackup/diem,PolibudaInfo/diem,PolibudaInfo/diem