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# Conflicts:
#	doc/guide/logging.xml

 - Added rationale for ptimeToText, durationToText
 - Added missing headers
 - Removed the default values in addValue()
 - StatsDuration is now passed by reference

1) Removed the srv-hooks logger
2) Updated DHCP4_NCR_CREATE message description
3) Updated logging doc.

Also, renamed loggers.

Except user guide related and "fixme" leftovers.

 - {ptime,duration}ToText moved to lib/util
 - missing comments added
 - EXPECT_EQ -> ASSERT_EQ
 - several consts added
 - protected methods are now private in Observation
 - tabs converted to spaces

because that directory name doesn't exist with the installed version
of kea.

This is trivial and I commit to master without review.

The erase function was called on the const_iterator which caused build
failures on Linux boxes with gcc. This fix was okayed on jabber.

fqdn_unittest.cc
    TEST_F(NameDhcpv4SrvTest, emptyFqdn) - now also verifies that the
    lease is added to the database following a REQUEST and that when
    it is retrieved from the database its hostname matches the generated FQDN.

Listed all loggers and updated the introductory text.

Also, revised the debug levels for all messages in the Dhcp4Srv class.