Version 2.11.0

Added

• New index::RelationsMap(Stash|Index) classes implementing an index for
  looking up parent relation IDs given a member relation ID.
• Add get_noexcept() method to all index maps. For cases where ids are
  often not in the index using this can speed up a program considerably.
• New non-const WayNodeList::operator[].
• Default constructed "invalid" Coordinates.
• Tile constructor from web mercator coordinates and some helper
  functions for tile arithmetic.
• Tag matcher matching keys using a regex.
• New envelope() functions on NodeRefList, Way, and Area returning a
  Box object with the geometric envelope of the object.
• Add amenity_list example.

Changed

• Replaced the implementation for the web mercator projection using the usual
  tan-formula with a polynomial approximation which is much faster and good
  enough for OSM data which only has ~1cm resolution anyway. See
  https://github.com/osmcode/mercator-projection for all the details and
  benchmarks. You can disable this by defining the macro
  OSMIUM_USE_SLOW_MERCATOR_PROJECTION before including any of the Osmium
  headers.
• Removed the outdated Makefile. Always use CMake directly to build.
• Refactoring of osmium::apply() removing the resursive templates for faster
  compile times and allowing rvalue handlers.
• Lots of code and test cleanups and more documentation.

Fixed

• Handle endianess on FreeBSD properly.
• Fixed doxygen config for reproducible builds.