third GDI mission recreated in Lua
launch a Nod attack after 15 seconds
Increase cost of DOME from 1600 to 1800

Just move this slightly later, and make DOME-first rushes a bit more
risky.
fixed music player image button mouse over highlight
RA adding blitzkrieg & burlesca balanced maps
Set ProductionItem build time when building starts

The build time for a unit/structure was previously set at the time that
item was added to a production queue. This meant modifiers of the
production time (multiple production facilities in ClassicProductionQueue
or "instant build" in debug) were not applied to items already in a queue.

This change modifies ProductionQueue so that build time is set at the
instant an item starts building (reaches the front of it's queue). This was
done primarily to make the production bonuses in ClassicProductionQueue
more apparent, though it also makes the "instant build" debug option more
responsive when items are queued prior to enabling.
Merge pull request #4838 from stecman/production-time-fix

Set unit/structure build time when building starts instead of when added to queue
Merge pull request #4836 from s1ww/bleed

RA adding blitzkrieg & burlesca balanced maps
Update CHANGELOG

#4836
Merge pull request #4830 from Mailaender/music-button-mouseover

Fixed music player image button mouse over highlight
Updated building descriptions.
Make Allied and Soviet factions build general-purpose mines instead of AT and AP mines.
Update CHANGELOG for mine changes
Overhaul ingame timer displays. Fixes #3062.
Remove World.FrameNumber.
Fix Sound coding style nits.
Merge pull request #4852 from pchote/timer-fixup

Overhaul ingame timer displays.
Merge pull request #4827 from ScottNZ/balance

Make Allied/Soviet factions use general-purpose mines
Add a new RA AttackMove cursor by @pizzaoverhead.
Add a new TD AttackMove cursor.