This will fix a build error on some systems, and is a good practice anyway.
Also fix a minor wording error in a comment.

	src/lib/datasrc/tests/Makefile.am
auth_srv_unittest.cc needed an adjustment, but I believe it's trivial,
so I'm commiting and pushing it.

it conflicted with RESOLVER_SHUTDOWN info message (the debug one signals the shutdown command was received, the info message that the resolver actually shut down)

Conflicts:
	src/bin/auth/auth_srv.cc
	src/bin/auth/tests/auth_srv_unittest.cc

also fixed tab indentation for consistency

They are replaced by references, as the server is synchronous, they
should not be preserved outside from the call anyway.

indentation, spaces, and one loop instead of separate tests

switch. the codes are in src/lib/util/locks.h

the content was basiclally just moved from an older version of the
corresponding files without "_link", so there should be no essential
change in semantics.

for the efficiency check of the timing calculation, use a tighter margin than for the actual test itself

(checked by shane)

leftSplit() -> stripLeft()
rightSplit() -> stripRight()

This should be more efficient than expensive name comparison.
This is a small (unrelated) optimization, but hopefully it's okay.

also removed debug output.