Crayons can now be grinded down for coloured crayon powder, which can be used and combined to override reagent colours.
Changes some stuff Giacom provided input on. Thanks Aranclanos and Kaze Espada for the help.
Added the ..() as lord Giacom requested. Added changes to grinder that giacom did. May as well let them piggyback on this commit and hope it somehow forces my gloriously bads crayon powder to be pulled.
Made reagent descriptions nicer (Also I forgot to finish it before! Woops.)
Returned /proc/mix_color_from_reagents(var/list/reagent_list) to normal, so crayons mix like normal reagents.
Merge pull request #1500 from AstralSerpent/master

Crayons can now be grinded down for coloured crayon powder, which can be...