+1101. [bug] stephen
+ Made DHCPSRV_MEMFILE_LFC_UNREGISTER_TIMER_FAILED a debug message as the
+ condition leading to it (trying to unregister a timer that is not
+ registered) does not have an adverse effect on the operation of Kea.
+ (Trac #4293, git 06204c5d347d0df359af69974c155d0fa9725b44)
+
1100. [bug] tmark
Wrapped asio/asio.hpp with logic to suppress optimization when building
under GCC 5.2.0 through 5.3.1 and BOOST_ERROR_CODE_HEADER only is defined.