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 - DORA support added
 - REQUEST/Renewing support added
 - RELEASE support added
 - AllocationEngine now supports lease4 renewals
 - many other smaller code additions
 - many tests written

- added boundary checks for Uint32Parser
- fixed #include order
- Class renamed to Dhcp4ConfigParser
- added extra test for Uint32Parser
- Many Doxygen fixes and clean-ups

Also fix some issues from the review.

- better exception handling in dhcpv{4,6}Srv constructors
- port number is now parsed with boost::lexical_cast
- new tests for port numbers implemented
- ControlledDhcpv{4,6}Srv objects are now automatic
- runDhcpv4() method renamed to runCommand() to better prepare
  for upcoming 4/6 test merge.

- several parameters are now const
- OS-specific code moved from iface_mgr.cc to iface_mgr_linux.cc
- C-style casts replaced with a casting framework
  (see lib/util/io/pktinfo_utilities.h)
- added lib/util/range_utilities.h for methods that operate on
  container's ranges (isRangeZero and fillRandom)
- many other minor corrections

- port is now specified using uint16_t in IfaceMgr
- support for proper DUID generation implemented
- implemented new tests
- new HWTYPEs defines
- unpack methods now return size_t type
- comments updated in option*.h headers

- Migrated from boost::shared_array to std::vector<uint8>
- Pkt6 now have all fields private, getters/setters implemented
- Many smaller clean-ups
- Tests updated to follow new procedure
- isc::util::OutputBuffer is now used

- ChangeLog from master merged.
- dhcp4_srv cleanup (echo remnants removed, assignLease renamed)
- Pkt4::unpack() now is void and throws in case of problems

- Vector initialization clean-ups
- Typo in comment

- appendRequestedOptions(), assignLease() added in dhcpv4_srv class.
- dhcpv4_srv now uses hardcoded values from 192.0.2.0/24 range.

- processDiscover(), processRequest(), copyDefaultFields(),
  appendDefaultOptions() implemented in dhcpv4_srv class

- setUint8(), setUint16(), setUint32() added to Option class.

- Pkt4 class now properly sets packet type after parsing.

Note: this fix is also present on other branches.

- DHCPv4 tests now simulate detection of 127.0.0.1 address
- DHCPv4 tests now open sockets on loopback
- Option::getUintX() now uses code from isc::util::getUintX
- Option::getUintX() methods are now documented
- Test for option::getUintX() implemented
- src/lib/dns/benchmarks/Makefile that was added by mistake removed

- Implemented several getters/setters
- Added reason comments for #if 0 code (dependency on other tickets)
- New test for implemented getters/setters

- IfaceMgr moved
- Added new, simple test for b10-dhcp4 daemon
- Added skeleton man page for b10-dhcp4