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These files weren't changed when root_logger_name.h was renamed to
logger_name.h.  Rather than just change the #include file name, the
logging was correctly initialized.

Create BIND 10 root logger as child of the (unused) log4cplus
root logger and create other loggers as children of that.  This
simplifies the inclusion of logger name in output messages.
Also, enhance documentation.

Added to root_logger_name.* which was renamed to the more general
logger_name.*.  Updated files to cope with revised name.  Also
uncommented some unit tests that must have been commented out
from the Makefile.am when chasing a problem as some point in the past.

On some systems, the output of "wc -l" is left-justified.  On
others (the ones on which the test fails), the output is indented.
Replacing "cut" with "awk" fixes this.

Conflicts:
	src/lib/log/tests/Makefile.am
	src/lib/log/tests/logger_unittest.cc
	src/lib/log/tests/run_unittests.cc

... and convert from using TEST_F to TEST.

... and correct error in previous commit.

Also add test to check that an exception is generated if there is
a failure to access a local message file.

add comment
change from unused-parameter to unused-variable
remove additional change as was not needed.

discussed on jabber
and I tested directly with clang on Mac OS X (where problem
was seen).

cases (which currently fail due to other problem)

Change reviewed on Jabber.