SES-1789 : Use junit temporaryfolder in NativeStoreContextTest
SES-1789 : Convert store-compliance to jetty-9
SES-1789 : More test changes
SES-1789 : Use nanoTime in FileUtil.createTempDir and remove the
factorial that was previously making the loop useless
SES-1789 : more work on tests
SES-1791 : Start converting File to Path
SES-1791 : Move conversions from File to Path