Fixes #2122
Fixes #1454

Addendum (est31)
According from its docs in android_native_app_glue.h (from the NDK), the
onInputEvent should "Return 1 if you have handled the event, 0 for any
default dispatching". Before, we always returned 1, meaning we blocked
all hardware keys to be given to the OS.
This broke the volume keys and has caused #2122 and #1454.

Although it bases on lots of guesswork, it can probably safely be said that
CGUIEnvironment::postEventFromUser returns true if the event was handled,
and false if not. Therefore, set the status variable depending on what
postEventFromUser returned.

The change keys dialog can't be left. It doesn't make
much sense to show it on Android in the first place,
therefore disable it, just like commit

aed70cb0 'Disable sound and key binding settings in "pause" menu on android'

has disabled it for the esc menu.

Fixes #4115.

Bug and whitespace error fixed (Zeno)

Its more secure, and some pages even redirect to the https version.

This fixes an issue where trees are omitted from Mapgen V6 maps on
configurations that explicitly defined the mgv6_spflags setting.

Edited packages to reflect correct packages

Currently translated at 56.8% (504 of 887 strings)

This is a merger of two commits.

Currently translated at 51.5% (457 of 887 strings)

This is a merger of two commits.

Currently translated at 51.5% (457 of 887 strings)

Currently translated at 38.4% (341 of 887 strings)

This is a merger of two commits.

Currently translated at 10.5% (94 of 887 strings)

Currently translated at 100.0% (887 of 887 strings)

This is a merger of three commits.

Currently translated at 51.5% (457 of 887 strings)

Currently translated at 90.7% (805 of 887 strings)

Currently translated at 50.6% (449 of 887 strings)

Currently translated at 75.7% (672 of 887 strings)

Currently translated at 27.6% (245 of 887 strings)

This is a merger of two commits.

Currently translated at 73.9% (656 of 887 strings)

Currently translated at 100.0% (887 of 887 strings)

This is a merger of three commits.

Currently translated at 89.6% (795 of 887 strings)

This is a merger of three commits.

Currently translated at 85.6% (760 of 887 strings)

Doing it the other way round was a mistake, since it breaks
minetest.formspec_escape with escape sequences that contain
special characters.

This makes it work even if it contains escape sequences,
which didn't work before.