update RELEASE_NOTES, with remark about lobby sounds preference
update RELEASE_NOTES, fix a typo introduced in previous commit
update RELEASE_NOTES: clarify the problem with map labels
update RELEASE_NOTES with remarks about hotkey bugs
update RELEASE_NOTES: fixup [bug][/bug] inside [section]
Make Lit Mushroom Grove stats identical to Mushroom Grove

(Favor the terrain with the worst movement costs between the base and
overlay, instead of always using Fungus movement costs.)

This is part of the fix for bug #21971 that was missed in commit
18282b542fe48614d74090535552ba4a9d430682.
Changelog update

Changelog update for https://github.com/wesnoth/wesnoth/pull/239
Fix the warn_early_init_failure message

The data dir path is set with --data-dir, not --config-dir. Somehow this
slipped past my internal radar despite reviewing the diff several times.
Merge pull request #249 from ancestral/1.12

Changelog update
check lobby_sounds preference for the GUI 1 lobby also

This fixes a bug reported on forums here:
http://forums.wesnoth.org/viewtopic.php?f=4&t=40660#p572131

The lobby sounds pref now affects the GUI 1 and 2 mp lobbies,
but it only affects the lobby screen, not mp::wait or mp::connect
etc.

This check is implemented by trying to dynamic cast 'this' mp::ui
object to a mp::lobby, at the time when we would play the arrive
or leave sounds.

The lobby sounds pref does *not* block the sounds due to server
messages, messages from a friend, or whispers.