add limit for steps to avoid runaway memory consumption by collision handling
Remove use of operator[] on a std::map, so no spurious elements get inserted. (fixes #464)

All uses of operator[] in guiConfigureWorld.cpp have been replaced
with .find() operations.

In some places, operator[] had been called with mod names of "Add-Ons"
or "N/A", which would insert a default-constructed ModSpec into the
list of add-on mods. In other places, the use of operator[] was safe
now, but it probably is safer for future changes to use .find()
everywhere.
Enable multiline signs
Server requires gettext library as well
Fix to on_rightclick not able to change wielded_item
Fix minetest.item_place_node() and minetest.item_drop() to always return an ItemStack
Improved Player Physics
Add Freetype support
Restore old acceleration behavior until something is actually agreed on
Restore old acceleration behavior until something is actually agreed on (part 2)
Some kind of middleway values for player acceleration for now
Merge pull request #465 from doserj/mod_selection_empty_modname_fix

Remove use of operator[] on a std::map, so no spurious elements get inse...
Translated using Weblate (Russian)
Set numeric locale for Lua
Disable placement prediction for nodes that use on_rightclick
Dont drop tools on rightclick
Translated using Weblate (Japanese)
Translated using Weblate (Japanese)
Print missing mod dependencies on server start

i.e., not only the mod with missing dependencies, but also the missing
dependencies itself. (This already used to be the case before the mod
selection gui was added)

Also, mods with unsatisfied dependencies are no longer reported as
mods that could not be found.
Merge pull request #500 from doserj/server_report_missing_deps

Print missing mod dependencies on server start