Fix background mode of urlmount
Fix background mode of urlmount

Need the recheck thread managed in the background process if using
urlmount the normal way.

jjohnson42/confluent,jjohnson42/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,jjohnson42/confluent,xcat2/confluent,xcat2/confluent,xcat2/confluent,jjohnson42/confluent