Add deleted constructor to avoid the compiler falling through to the bool constructor in case of missuse.
Add deleted constructor to avoid the compiler falling through to the bool constructor in case of missuse.

aurelijusb/arangodb,morsdatum/ArangoDB,pekeler/arangodb,razvanphp/arangodb,morsdatum/ArangoDB,pekeler/arangodb,kkdd/arangodb,nekulin/arangodb,aurelijusb/arangodb,mujiansu/arangodb,abaditsegay/arangodb,mujiansu/arangodb,morsdatum/ArangoDB,morsdatum/ArangoDB,kkdd/arangodb,mujiansu/arangodb,kkdd/arangodb,nvoron23/arangodb,abaditsegay/arangodb,abaditsegay/arangodb,aurelijusb/arangodb,nvoron23/arangodb,pekeler/arangodb,pekeler/arangodb,nvoron23/arangodb,kkdd/arangodb,morsdatum/ArangoDB,kkdd/arangodb,razvanphp/arangodb,razvanphp/arangodb,nekulin/arangodb,kkdd/arangodb,razvanphp/arangodb,aurelijusb/arangodb,mujiansu/arangodb,nekulin/arangodb,nekulin/arangodb,mujiansu/arangodb,nvoron23/arangodb,morsdatum/ArangoDB,abaditsegay/arangodb,nvoron23/arangodb,razvanphp/arangodb,nvoron23/arangodb,pekeler/arangodb,kkdd/arangodb,pekeler/arangodb,nvoron23/arangodb,pekeler/arangodb,razvanphp/arangodb,abaditsegay/arangodb,nvoron23/arangodb,nekulin/arangodb,aurelijusb/arangodb,morsdatum/ArangoDB,pekeler/arangodb,kkdd/arangodb,abaditsegay/arangodb,abaditsegay/arangodb,abaditsegay/arangodb,aurelijusb/arangodb,pekeler/arangodb,morsdatum/ArangoDB,kkdd/arangodb,mujiansu/arangodb,aurelijusb/arangodb,nekulin/arangodb,razvanphp/arangodb,nekulin/arangodb,nekulin/arangodb,nvoron23/arangodb,morsdatum/ArangoDB,kkdd/arangodb,morsdatum/ArangoDB,razvanphp/arangodb,razvanphp/arangodb,aurelijusb/arangodb,nekulin/arangodb,razvanphp/arangodb,mujiansu/arangodb,nvoron23/arangodb,nekulin/arangodb,aurelijusb/arangodb,aurelijusb/arangodb,mujiansu/arangodb,mujiansu/arangodb,abaditsegay/arangodb,pekeler/arangodb,mujiansu/arangodb,abaditsegay/arangodb