New formspec elements:
- `scroll_container[<X>,<Y>;<W>,<H>;<scrollbar name>;<orientation>;<scroll factor>]`
- `scroll_container_end[]`
Other elements can be embedded in this element. Scrollbar must be placed manually.
- Add style properties for overriding the the hovered/pressed state
- By default, hovered buttons are a lighter version of the base color
- By default, pressed buttons are a darker version of the base color
- Add hovered bg image support for image buttons (style property)
* Fix some issues with minetest.clear_craft
- Fix memory leak
- Fix crafts with an output count not being cleared when clearing by
input.
- Fix recipe list being reversed when clearing by input.
* Add CraftInput::empty()
* Minimal: Explicit log levels
* Minimal: Formspec test now disabled by default
This is done because the formspec test was disruptive.
This test can now be toggled with server command test_formspec first.
* Add minetest.bulk_set_node call + experimental mod unittest
* Optimize set_node function to prevent triple lookup on contentfeatures
Do only one lookup for old, and try to merge old and new lookup if node is same than previous node
* Add benchmark function + optimize vector population to have real results
* Fix default item callbacks to work with nil users
* item.lua: Handle node drops for invalid players
The if-condition for the dropping loop is the same as `inv`, which means that the 2nd possible definition of `give_item` is never used.
Remove redundant `local _, dropped_item`
Implement network communication for channels
* Implement ModChannel manager server side to route incoming messages from clients to other clients
* Add signal handler switch on client & ModChannelMgr on client to handle channels
* Add Lua API bindings + client packet sending + unittests
* Implement server message sending
* Add callback from received message handler to Lua API using registration method
* Player attrs: permits to remove an attribute by setting value to nil
When doing player:set_attribute("attr", nil) remove attribute
Also remove a useless check on C++ API part (already done by checkplayer)
Fix#5709
