fix quotes in descriptions, for Lmod cache compatibility

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
add latest and greatest Lmod/Lua pair

Signed-off-by: Fotis Georgatos <fotis.georgatos@uni.lu>
Merge pull request #692 from fgeorgatos/bugfix_quotes_in_descriptions

Bugfix quotes in descriptions, for Lmod cache compatibility