Refactoring: Avoid name clashing in case other mods declare functions with the same names

Fix bug where player gets killed when he adds/removes a spear and clicked on the wrong grave square.

Publish translations for most languages

Fix broken translations

Fix invalid charset for translation files

Add missing language support

Add translation for many languages

Fix directory structure for Lua files

Fix invalid upload to steam

Fix bug when removing spears from the grave: It was only removing non-broken spears
Fix bug where no tile was added when adding a spear after removing one: It could add a tile that was already there, giving the impression no new spear was added