This bypass had to be re-enabled as some users reported issues,
even after the iconv build fix.

While utf8_to_wide works well, wide_to_utf8 is quite broken
on android, for some reason, and some devices (unrelated from build
configuration).

Before, this lua code led to a crash:

local pcg = PcgRandom(42)
local value = pcg:next()

This was because if you called s32 PcgRandom::range(min, max) with the
minimum and maximum possible values for s32 integers (which the lua
binding code did), u32 PcgRandom::range(bound) got called with 0 as the
bound. The bound however is one above the maximum value, so 0 is a "special"
value to pass to this function. This commit fixes the lua crash by
assigning the RNG's full range to the bound 0, which is also fits to the
"maximum is bound - 1" principle, as (u32)-1 is the maximum value in the
u32 range.

Also misc. minor cleanups

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 91.1% (246 of 270 strings)

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 100.0% (270 of 270 strings)

Currently translated at 99.6% (269 of 270 strings)

Currently translated at 96.2% (260 of 270 strings)

Currently translated at 96.2% (260 of 270 strings)

Currently translated at 99.6% (269 of 270 strings)

Currently translated at 96.2% (260 of 270 strings)

This fixes bug 1551

This was caused by the use the non-threadsafe SharedBuffer in a
threaded context.