rel: update changelog for 0.10.2
endpoints: fix typo in docstring
fibers: mark Fiber.join() as a switchpoint
process: fix race condition in _on_child_exit()

The _on_child_exit handler would unconditionally close the stdio handles,
which is problematic as the handles could still have data in them.

The fix is to not to close the stdio handles when the process exits, and to
add a .close() method that needs to be called explicitly by the user to do
the cleanup.
sslcompat: remove unused 2.6 compat code
process: fix communicate() and more tests
logging: fix patch_logger() and more tests
tasks: allow rm -rf to fail

Happens with me when there's .fuseXXXX files in __pycache__
sync: tweak test timing
tests: increase coverage