Merge pull request #257 from smirfolio/master

Error bug on module admin page
Harmo status facet removed
Code clean
Some vocabulary coverage styling
Do not display statistical values if not available.
Do not display mean if not available.
Fix link to harmonized variable
Variable unit field added
Merge pull request #258 from obiba/cptp-fixes

Cptp fixes
Fix first column table  in coverage page
Fix first column table  in coverage page