Merge pull request #170 from emorency/master

OPAL-1804 and fixed refreshing icon when filtering for a variable that do not exists
User obiba-commons-1.4.0
OPAL-1810: Use the array of hitsArray to loop on all results instead of total hits.
OPAL-1808: Up arrow keeps the previous filter and filters the variables list accordingly
OPAL-1808: Next/Previous arrows will navigate within the filtered variables