s1689: missed a cookie
s1689: remove debug statement
s1689: fix bugs detected when running tests
s1689: fix loggers
s1689: fix vofile unit test

The tests were failing an "isInstance" assertion for the
Connection class. Rather than using the spec= argument (which
caused a different failure due to the cookie initialization),
use the actual Connection class and simply patch the get_connection
method.
s1689: tests for vos Client constructor
s1689: missed vrmdir in parser refactor
s1689: remove debug message
s1689: use scoped cookies