minetest/minetest — pull request #1694 by BlockMen (2014-09-27 16:20:01+00:00)
Title: Add optional framed glasslike drawtype

Needed for sane solution for requests like this: https://github.com/minetest/minetest_game/pull/321

Adds an option to mainmenu (replaces the IMO not needed preload items cb) to enabled connected glass clientside if node drawtype is "glasslike_framed_optional".