OPAL-2227: Add attribute on multiple variables at once
OPAL-2227: Removing redundant JsArrays.toList(JsArrays.toSafeArray)
OPAL-2206 - made sure all pagers are visible only when rows > pager's pageSize
Merge pull request #420 from kazoompa/bug-OPAL-2206

OPAL-2206 - made sure all pagers are visible only when rows > pager's 'page size'
Merge pull request #421 from emorency/OPAL-2227-add-attribute

Opal-2227: Add attribute to multiple variables at once