Rework texture generating code, add texture grouping via ( ... )
Add ZLIBWAPI_DLL and LEVELDB_DLL CMake options Remove legacy MINGWM10_DLL CMake option Update 32-bit buildbot (OpenAL updated, zlib updated) Change build directory for buildbots to '_build' to prevent removal of Android build files Use -win64 suffix for 64-bit Windows builds Fixes #1476
Fix issue 1527
https://github.com/minetest/minetest/issues/1527
Disable preload_item_visuals by default

This can delay connections by several minutes.
Formspec escape fixed seen in world creation menu
Move #includes from version.h to version.cpp