Really remove temporary directories
Really remove temporary directories

File.deleteOnExit() method doesn't delete non-empty directories. So
implement a replacement which will walk through the directory and delete
all files within.

Signed-off-by: Dmitry Eremin-Solenikov <b6edad08270b2e4ffbcb0879e25a0e29a48c5275@gmail.com>

martinpaljak/ant-javacard