[3720] Add sections about LFC to the developes and administrators guides

Merge branch 'trac3720'

Conflicts:
	ChangeLog

diff --cc ChangeLog
index bf835c00974bc1c1c5e97e19e4d3fcd6eee68852,401eefbf4934e9f28b7f372cc7030baf67dc119e..14b81ebdeab2e72b8bc61d38752eb41efd4eaeba
--- 1/ChangeLog
--- 2/ChangeLog
+++ b/ChangeLog
@@@ -1,25 -1,8 +1,30 @@@
 -xxx.  [doc]           sar
++912.  [doc]           sar
+       Added sections on LFC to the administrators and developers
+       guides.
+       (Trac #3720, git )
+ 
 +911.  [func]*         marcin
 +      libdhcp++: the C++ objects representing network interfaces
 +      (Iface objects) are now non-copyable. As a result, the API
 +      of the Interface Manager functions returning the pointers
 +      to the Iface objects has changed.
 +      (Trac #3715, git 7415c74e38e13385a75e7200cb23b7d6ca86df7f)
 +
 +910.  [func]          marcin
 +      DHCPv4 server supports static reservations of the hostnames
 +      for the clients.
 +      (Trac #3688, git b5c50e2aff64da05b439da8d5fa4913fc8a704ca)
 +
 +909.  [bug]           marcin
 +      Removed many cppcheck errors in the code. Also removed the
 +      dhcp-ubench test tool.
 +      (Trac #3736, git 552aea126e968b78292ae80c1c6a03c9ef4dcdcd)
 +
 +908.  [bug]           marcin
 +      Handle overflows during time conversions in the MySQL and
 +      PostgreSQL lease database backends.
 +      (Trac #3673, git 27b4e4590fdee507f0e877d7b771dc6c6457a4b5)
 +
  907.  [doc]           tmark
        Corrected depictions of kea-admin command line options for
        database-name in Kea Administrator Reference. Prior to this