Fixes a piping error in chemistry
Chaaaaaange
Merge pull request #2986 from meyar/master

Map fix: Chemistry disposal
refactoring the Stat function for silicon lifeforms
adding messenger functions to cyborgs and refactoring the AI's IM system
- reverting a change I hadn't accounted for to the luminosity of the PDA's flashlight
Merge branch 'master' into bleeding-edge-freeze

Conflicts:
	html/changelog.html