Move MapBlock (de)serializing code out of Database class
Fix crash reported here: https://forum.minetest.net/viewtopic.php?f=6&t=9726
Fix android build after removal of indev and math mapgen
Add srollbar formspec element
Fix flipped textures for drawtype "glasslike"
Fix indexing error in timer processing
Permit non-integer sizes for item_image[]
Make tooltip_show_delay=0 work
Fix error handling on inconsistent client ready message
Fix android makefile to provide a correct dummy githash if detection fails
Fix texture hack in fences.
Fix texture glitches for plants with visual scale > 1.0 (jungle grass).
Speedup mapblock_mesh
Remove vector assertions

These were initially added to get tracebacks for invalid vector errors, but it
didn't work and tracebacks have since been properly fixed in the core.
Bugfix in makeCuboid - apply rotations to all faces when 1 tile is given.
more_threads option
Less client asserts
Merge remote-tracking branch 'upstream/master' into next

Conflicts:
	src/defaultsettings.cpp
Fix lock
Add rotation for plantlike drawtype.
Fix crash