* New API to allow access into MapSector::m_blocks
* Use this API on ClientMap::touchMapBlocks(), ClientMap::updateDrawList(), and ClientMap::updateDrawListShadow() to speed them up
- Avoid calculating isBlockInSight for blocks without meshes.
- Add metric for how many blocks the client has currently loaded.
- Make some variables constant.
* remove sector meta loading/saving from files which targets dead code (differs_from_disk is always empty)
* this remove empty ServerMapSector and ClientMapSector, remove MapSector childs
* Modernize various files (src/m*)
* range-based for loops
* code style
* C++ headers instead of C headers
* Default operators
* empty function
Thanks to clang-tidy
* C++11 patchset 10: continue cleanup on constructors
* Drop obsolete bool MainMenuData::enable_public (setting is called with cURL in server loop)
* More classes cleanup
* More classes cleanup + change NULL tests to boolean tests
This is part 2 for 5f084cd98d7b3326b51320455364337539710efd
Other improvements:
* Use the defined ItemGroupList when used
* make Client::checkPrivilege const
* inline some trivial functions
* Add ActiveObjectMap typedef
* Add SettingsEntries typedef
