remove util/hash and update dns/nsec3hash
[3427] Logging configuration implemented.
[3461] Corrected valgrind errors in the util library.
[3427] Configuration unit-tests written.
[3427] User's Guide updated
[3427] Examples updated.
[3269] Implemented processing of the Confirm message.
[3269] Removed extraneous configuration sets from confirm unit tests.
[3269] Moved common functions from Confirm/Rebind unit tests to new class.
[3269] Updated the User's Guide to include support for Confirm.
[3269] Include client id in the server's response to Confirm.
[3427] Changes after review:
 - Kea ARM updated
 - shell tests for Kea4,Kea6 and D2 are now passing
 - kea.conf updated with logging info
 - Various improvements in Daemon and LogConfigParser
 - DEFAULT_SYSLOG_NAME removed
 - Copyright years fixed
 - Couple additional tests written
[3427] parseConfiguration() log_config parameter is now const referenced.
[3320] Basic implementation of the Requested IP Address support.
[3416] Remove all mention of BIND 10 from message files
[3320] Covered the case where the client is in INIT-REBOOT state.
[3320] Replaced unit test for many Requests with new test using DHCP4 client.
[3468] Kea4 start documented.
[3320] Address review comments.
[3416] Change one more occurrence of "BIND 10" to "Kea" in .mes files

This omission was picked up in review