latest and greatest Chapel added

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
re-add parallel=1, it is there for a reason

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
specialize libpath and sanitychecks for latest Chapel

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
add Chapel-1.8.0-goolf-1.6.10.eb

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
minor style fixes
Merge pull request #526 from boegel/contrib_latest_chapel

add easyconfigs for Chapel 1.8.0