Fix JSONP integration test for newer rack-contrib versions
Fix JSONP integration test for newer rack-contrib versions

The JSONP padding changed from functionName() to /**/functionName()
in rack-contrib 1.2

#441
reidab/calagator,L2-D2/calagator,reidab/calagator,L2-D2/calagator,cp/calagator-1,L2-D2/calagator,reidab/calagator,cp/calagator-1,cp/calagator-1,L2-D2/calagator,reidab/calagator,cp/calagator-1