Minetest developer meeting 2017-05-20

Last chance to merge/improve the remaining PR before feature freeze:

Old business:
 * Additional hooks for inventory manipulations callbacks (#4035)
   * Krock was working on it (#5647), but had an issue with a mysterious crash bug.  Progress?
 * Timed move (#1489)
   * Merge/close?
   * nerzhul: close for me
   * nore: Merge
   * Krock: Merge
 * Split block position in SQLite3 database (and use R*Tree) (#1845)
   * Rebased, performance tests to do soon(tm).
   * nerzhul: performance is a little bit slower, but it's ridiculous compared to mapblock deserialization part (no bench to show it atm, but i did it 2 years ago on my fork, and SQLite was improved since this date)
 * Add list_predict formspec element (#1988)
   * sofar worked on a rebase a while ago.  Close or merge a modern version?
 * New screenshots for website (web#78)  https://github.com/minetest/minetest.github.io/issues/78
   * ShadowNinja: "good" screenshots are fairly subjective and it doesn't look like we're actually getting anywhere near a decision in the issue thread, therefore I propose assigning someone to choose and install new screenshots.
   * > Calinou will handle it


New business:
 * First, release blockers:
 * https://github.com/minetest/minetest/pull/5767 Don't add damage flash while punch texture modifier is active #5767
   * > Bugfix, punted to next meeting.
 * https://github.com/minetest/minetest/issues/5782 [CSM] Disable preview mod before release #5782
   * CSM disabled by default anyways since it's experimental
   * > Fixed by #5554
 * https://github.com/minetest/minetest/issues/5728 Block instadig after tool switch #5728
   * > Fixed by #5785
 * nerzhul:
 * https://github.com/minetest/minetest/pull/5732 (CSM nodedefs/itemdefs read)
 * maybe close https://github.com/minetest/minetest/pull/5654
 * Single/Multiplayer tab merge https://github.com/minetest/minetest/pull/5627 (user UI experience)
   * > Merge with minor changes
 * Create world better experience: https://github.com/minetest/minetest/pull/5589
 * Permit to enable/disable mods on CSM  https://github.com/minetest/minetest/pull/5554 (very important)
   * ShadowNina: CSM is experimental, so I don't think any CSM issues should be blockers
     * nerzhul: here the problem if a user enable client side modding his experience will be affected by this preview mod, dedicated to modders)
   * > nerzhul will merge
 * https://github.com/minetest/minetest/pull/5589 (start world after creation)
 * LMDB backend (https://github.com/minetest/minetest/pull/4206)
   * nerzhul: Close? We already have 5 backends to maintain and we already cover all the usecases (client usage, performance usage, reliability usage)