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To prevent accidental outside use, all LogBugger (and BufferAppender) code is in the namespace isc::log::internal now, and the files have been renamed to _impl

And clean up the process() calls and processSpecification() method (which should mostly look like they were now)

slightly changed outer layer process() call so it isn't necessary anymore

including docstring updates

Also updated log's README

needs cleanup and tests

Also adjust affected tests accordingly.

This is based on a patch sent in by John Lumby. Code still compiles and
works with log4cplus 1.0.4.

LOG4CPLUS_OPEN_MODE_TYPE and LOG4CPLUS_FSTREAM_NAMESPACE are going to be
removed in log4cplus 1.1.0 according to the bug report.

Note: impldef.mes was renamed to logimpl_messages.mes to better
reflect the contents.

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.

* Move reset() method to logger_manager (and _impl) and remove from the general
  logger classes.
* Correct problem whereby some messages went to stdout and some to stderr.
* Split the shell file testing into separate files, each testing one aspect of
  the logger.

Added the file appender, which routes output to a file (appending
to a file if one exists).

The root logger name is now obtained from the global variable
accessed by get/setRootLoggerName().

Also, the console appender now provides the correct pattern.

This is the global object that controls the logging system, so
it is logical that initialization is done here instead of in the
Logger class (which controls the operation of one logger).

Added basic logger manager and its implementation, plus an untested
console appender.  Also modified logger_support_test to use that
appender and have got part way through creating a file logger test.