Fixes for Android build errors. Enable sensor landscape rotation.

Fix typo in Android Makefile ndk path.
Fix touchscreen parts of game.cpp to work after Zeno's refactor.
Fix isdigit and isspace overload conflict with Android Irrlicht in string.h
Enable sensor landscape rotation in Android Manifiest.
Add mapgen v5 to Android build.
Fix Makefile not checking leveldb.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Fixes for Android build errors. Enable sensor landscape rotation.

Fix typo in Android Makefile ndk path.
Fix touchscreen parts of game.cpp to work after Zeno's refactor.
Fix isdigit and isspace overload conflict with Android Irrlicht in string.h
Enable sensor landscape rotation in Android Manifiest.
Add mapgen v5 to Android build.
Fix Makefile not checking leveldb.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Fix client "double saving" simple singleplayer local maps
Increase step smoothing to fit 1:1 stairs (works well on slabs too)

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Fix Android main menu crash, and user data directory check.

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Merge branch 'master' of https://github.com/minetest/minetest.git
Only set the camera update keymap when using a debug build

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Fix some undeclared global variables
Wieldmesh: don't force anisotropic filtering on, instead disable mipmaps

This should fix #1844. Thanks to oleastre for making the first version
of this commit (#1848).
added enable_build_where_you_stand option

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
EMF_USE_MIP_MAPS was introduced in Irrlicht 1.8, don't use in 1.7.3 or below

This is not optimal as it will cause minor graphical glitches for
Irrlicht 1.7 users, but at least it fixes the build.
Wield: always obey anisotropic_filter setting, not just for hi res textures
Don't corrupt stepheight when setting other properties
Add minetest.copy_table(table) To get rid off the "table references"

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
Merge branch 'master' of https://github.com/minetest/minetest.git
Optimise VoxelManipulator::copyFromcopyFrom

~2-3x faster

This indirectly optimises MapBlock:copyTo() which in turn improves performance of MeshMakeData::fill()