fixed ABINIT as per comments and bumped version

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
fixed ABINIT as per comments and bumped version also in filename

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
fixed comment on download step

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>