about to move the fastDelete() to the store class
tweak formatting on duration stats
fix leakage of open handle on on test
test overwrite of partitioned file with shorter one (passing)
test delete of partitioned file w/ recursion==false (failing, is interpreted as a directory)
print headers and duration stats of a HEAD operation. For debugging perf issues
test that you can overwrite a directory with a file. Not sure that this is part of the spec of Posix or FileSystem
move delete down to 'store and replace recursive delete with: list all entries under path, delete them