add 5.3 & 5.4 versions of Lmod

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
address remarks for 5.3, 5.4

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
address remarks for 5.2*

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
drop customization of mpathsearch

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
add easyconfig for Lmod v5.4.1
Merge pull request #32 from boegel/contrib_Lmod-5.4

add easyconfig for Lmod v5.4.1
promote to Lmod/5.4.2

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

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
Merge pull request #821 from fgeorgatos/contrib_Lmod-5.4

add 5.3 & 5.4 versions of Lmod