Bug in path manipulation: Breaks for .yaml resource file in package other than root package.

[dsbos]

The code that makes the file pathname to the copied .yaml resource file doesn't match the pathname of the copied file. This causes failures when the resource file is in a package (directory) other than the root.

When startEmbeddedCassandra(...) is called with a Yaml resource file pathname of /com/xxx/yyy/zzz/db/cassandra.yaml (and when such a resource exists, of course), the code makes a copy at .../embeddedCassandra/cassandra.yaml--adding just the simple name (last pathname segment) of the resource file pathname to the temporary directory name (.../embeddedCassandra).

However, after that copy, when the code tries to make a file pathname to that copied file, it makes a file pathname of ...embeddedCassandra/com/xxx/yyy/zzz/db/cassandra.yaml--using the whole pathname of the resource, not just the simple name (as the copy used).