Basic usage of blend_mode

Areas - fire and party alarms look better
Druggy 420 blazeit screen looks better
The whiteness of a flash looks nicer. Mob code makes me hesitant to really change this.
The nearsighted/welding mask dither looks better

If you want screenshots just ask.
Merge pull request #1729 from MrPerson/zone_of_the_blenders

Basic usage of blend_mode
Changes roundstart AI law behavior.
Changes Corporate to Kaze's popular Corporate2.
Included silicon_laws.txt
Add's IntigAsimov lawset as 'Asimov++'
Merge pull request #1 from RobRichards1997/19/12/2013-AI-Law-Does-Not-Compute

Add's IntigAsimov lawset as 'Asimov++'
Major changes & copypasta removal in AI module code.
This won't affect gameplay.
(Untested & map won't compile, I want to have the map in a seperate commit)
Updated the default map for AI board changes.
Changes Antimov over to the new AI law system and changes it's path on the map. Various fixes to the new system.
Finalized AI module refactoring. Everything works now.
Cleaning up of AI law datums, adds Custom AI board to the map.
Honk RD design datums use string paths~
Added a failsafe, default_laws is now a config option.
Merge branch 'master' of https://github.com/tgstation/-tg-station into dalawisfluid

Conflicts:
	code/game/objects/items/weapons/AI_modules.dm
	code/modules/research/designs.dm
	maps/tgstation.2.1.2.dmm
dds Drying Rack, Various Plants, Rollies, Pipes, and Torches

Any and all content credit to @Adrinus and @Iamgoofball
I simply re-applied all the changes by hand so it is compatible with current code
 #1893
More dead colons and pipes use their initial name when changing it
Irrigation Botany Changes

Screwdriver to hook up hoses in between anchored trays. If the transfer
amount is over 30 it sets off the irrigation and the units are equally
shared between all the connected trays.
Fixes/Refining
Indention Fixes