destroy missiles leaving the map

fixes #5582
Add smooth scrolling to the ScrollPanelWidget
add the JUNGLE terrain to Tiberian Dawn

http://cnc-comm.com/community/index.php?topic=2880.0
Made TD jungle terrain slightly less blueish.
StyleCop
allow to lay single mines similiar to the original

closes #5467
Add /crash dev command

Throws an exception and crashes the game. Useful to test the
shutdown sequence.
add a new Lint check for map players
StyleCop
fix remaining errors spotted by new player lint check
Trike's weaknesses.
Engineer's description changes.
Merge pull request #5330 from Mailaender/jungle

Added the JUNGLE terrain
Merge pull request #5628 from pavlos256/smooth-scrolling

Add smooth scrolling to the ScrollPanelWidget
Merge pull request #5722 from MustaphaTR/bleed

Some description changes
Merge pull request #5697 from Mailaender/classic-minelay

Added a classic minelay order
Merge pull request #5701 from pavlos256/dev-crash

Add /crash dev command
Merge pull request #5687 from Mailaender/missile-out-of-map

Added a check for IsInMap(cell) to missiles.
Light Unit Support for D2K.
Merge pull request #5732 from MustaphaTR/bleed

Closes #5726