* Add customizable settings for changing basic ingredients from
Minetest settings,
* Rework item replacements in some crafting recipes,
* Disable some redundant items when farming or mobs mod is loaded,
* Improve recent version of farming_redo support,
* Some crafting recipes are slightly changed,
* Fix warnings at load time.
Tested with minetest_game, farming_redo and mobs_animal.
At the beginning of the files, when the mod looks for intllibs, it does it by looking for
a variable defined by the library, but when the intllib mod isn't loaded, it ends up calling
for a global variable. Here is a more clean way to check whether or not the variable exists
using a lua function instead of a call for this variable.
