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>

serialize.h: use machine native byte swapping if available, fall-back to previous generic method if not (supported for GCC using endian.h, detection done in cmake) write/readARGB8() - just write 32-bit color in one op, instead of 4 1-byte ops cleanup: removed unneeded buffer init for some serialize-out functions use a #define for the fixed point factor in read/writeF1000()

nodemetadata.cpp, nodetimer.cpp
	optimzation: simpler deserialize node position method

staticobject.cpp:
	cleanup: use util/serialize.h inlines instead of its own de/serialization

serialize.cpp:
	minor optimization/cleanup: avoid generation of unneeded string temporary

CMakeLists.txt, cmake_config.h.in: detection of endian.h

config.h: added HAVE_ENDIAN_H

Commits due to feedback squashed

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

- Don't create and cache an extruded mesh for every (non-node) item.
  Instead use a single one per image resolution.

- For cubic nodes reuse a single wield mesh too

- Improve lighting of the wielded item

- Increase far value of wield mesh scene camera, fixes #1770

- Also includes some minor refactorings of Camera and GenericCAO.

Updated: Incorporated feedback from 'kahrl'
Updated: Moved MinetestApp::boolToCStr() from game.cpp into string.h renaming it bool_to_cstr()

Split up ModApiMapgen::l_register_decoration()
Define and make use of CONTAINS() and ARRLEN() macros

Also check for (this == &other) before locking mutexes.

There have been plenty of ppl involved in creating this version.
I don't wanna mention names as I'm sure I'd forget someone so I
just tell where help has been done:
- The partial android versions done by various ppl
- Testing on different android devices
- reviewing code (especially the in core changes)
- testing controls
- reviewing texts

A big thank you to everyone helping this to be completed!

This reverts commit 875f1327.
Fixed width format specifiers are only officially availale in C99 and C++11.

Remove flagmask field from set_mapgen_params table
Add small bits of needed documentation

This reverts commit 3f376a09.

Rename try* non exceptioning functions to *NoEx

Add curl_parallel_limit setting that will replace media_fetch_threads in
a later commit.

Fix a typo in MutexedQueue::pop_back() that made it impossible to compile
code that used this function. (Noticed this while implementing httpfetch.)