Revert "Upgrade Hsqldb to version 2.6.0"
Revert "Upgrade Hsqldb to version 2.6.0"

This reverts commit 7dc77290ab0e9ba81365bff06d51855b27ec57cb.

It won't work with JDK8

tdiesler/camel,apache/camel,christophd/camel,tdiesler/camel,adessaigne/camel,cunningt/camel,tadayosi/camel,apache/camel,tdiesler/camel,christophd/camel,cunningt/camel,christophd/camel,pax95/camel,cunningt/camel,christophd/camel,pax95/camel,cunningt/camel,tdiesler/camel,tadayosi/camel,adessaigne/camel,nikhilvibhav/camel,adessaigne/camel,tadayosi/camel,cunningt/camel,christophd/camel,pax95/camel,adessaigne/camel,tadayosi/camel,adessaigne/camel,tadayosi/camel,tadayosi/camel,adessaigne/camel,cunningt/camel,nikhilvibhav/camel,apache/camel,apache/camel,pax95/camel,apache/camel,nikhilvibhav/camel,christophd/camel,pax95/camel,tdiesler/camel,apache/camel,tdiesler/camel,pax95/camel,nikhilvibhav/camel