support the qfs:/// -- autrhority in URI is null

Change-Id: Ic05adc30bd60857cef9ce754c542c62feee84bc3
Tools: fix qfs tool missing destination name resize in copy functor by moving all resize before return invocations into one place at the beginning of the function call operator, and storing the destination name size in the functor's instance variable.
Merge branch 'support-null-authority' of https://github.com/psarda/qfs into psarda-support-null-authority
Merge branch 'master' into topic/krb