Decoration: Remove usage of multi-character constants
LuaVoxelManip: Allow liquid updates in non-mapgen VoxelManip objects
Mapgen V7: Fix out-of-bounds array access
BiomeDefManager: Fully initialize default biome
Add vector helpers
include mathconstants.h in numerics.cpp
Handle 0 vectors in vector.normalize()
When server sends late media, log to errorstream instead of crashing.

Do a check for valid num_files before doing
assert(!m_mesh_update_thread.IsRunning());

In particular, don't execute the assertion if all media has already
been received.
Fix parseColor, change remaining colorkeys to new format, fix Contributor list
Fix many formspec menu bugs
Settings: everything != 0 equals true; remove .asm shaders
Set numeric locale in Lua in main menu
Lua main menu: Fix world creation dialog
Move math.hypot() to misc_helpers.lua and fix zero-division error
Make sure that coordinates passed to /teleport are actual numbers
Remove note in lua-api.txt that there are no vector helper functions
Decoration: Handle facedir and wallmounted param2types with schematic rotation
Fix wallmounted rotations along Y axis for 90 and 270 degree cases
fix crash on play/start with empty world list
make enter button work in create world dialog
Fix serverlist not beeing escaped correctly
Always use address for server
Fix first (empty) element beeing selected after deleting last world