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.

Fixes the issue introduced by c1a0ebb7 (Fix use of uninitialised variable
in class Event) causing Windows builds to fail

The path finding code works fairly well except that it considers
anythin not CONTENT_AIR to be "above the surface". This results in
paths that are unwalkable for entities since e.g. plants are not
walkable. The path would force them to jump on top of grass plants,
etc..

The obvious solution is not to use CONTENT_AIR as a criteria, but
instead distinguish between walkable and non-walkable nodes. This
results in paths that properly walk through grass nodes.

This was extensively tested by a flock of electric sheep.

Note that for underwater purposes this changes the behaviour from
"the surface is walkable" to "ignore water entirely" making the
path go across the water bottom, and pathing fail likely from the
water surface. This is intentional.