DNA scanner pods now open and close like crates. This has fixed the following:
*Resolves #252 - Contents of dna scanners will be ex_acted properly.
*Resolves #125 - Mobs chestbursting in the scanner pod will no longer cause issues with entering/exiting the pod. The larva will be able to slither out (assuming it isn't locked), upon which the icon_state will update. Or it may be opened externally in a similar fashion.
*Items are no longer lost inside scanner pods when a mob is inside the pod with items and it mutates into a monkey or something.
*There are no longer any restrictions on having inorganic items on mobs being scanned.

Special thanks to Cheridan for the sprite-changes.

Modified   code/game/dna.dm
Modified   icons/obj/Cryogenic2.dmi
Adds a new assembly, the voice analyzer!
It can record an activation message, and when it hears that message thereafter, it will send a pulse.
Changelog entry.
Map updated as per Tenebrosity's request - tables moved in genetics.

Modified   html/changelog.html
Modified   maps/tgstation.2.1.2.dmm
Removed /obj/effect/begin and /obj/effect/laser. Both were unused.
Updated chem grenades. They use assembly holders instead of snowflake code for each assembly.
The build process is much the same, except they require an igniter-X assembly instead of a single assembly item. You can also just use a cable coil to get regular grenade behaviour.

Updated the changelog.
Removed var/special_assembly from assembly_holder as it was unused.
Updated singletank bombs to pass hear_talk to their assembly.
Merge branch 'master' of github.com:tgstation/-tg-station into assemblyfun

Conflicts:
	code/game/objects/items/weapons/grenades/chem_grenade.dm
	html/changelog.html
Added grenade disassembly. Use wirecutters to unlock it, and a wrench to remove the contents.
Merge branch 'master' of github.com:tgstation/-tg-station into assemblyfun

Conflicts:
	html/changelog.html
Optimizations in insignificant procs (less than 2% of total self time each (according to the june 7 profile), and the changes probably don't have a huge impact on them.

/turf/simulated/proc/update_air_properties()
 - Changed border lists to use |= rather than -= then +=.

/datum/camerachunk/New()
 - Uses block() rather than range() and a coordinate check

Comment (copied to two places) outlining a potential optimization. (potential as in "needs to be tested whether it actually makes things faster")
Merge pull request #763 from Uristqwerty/master

Small optimizations in air and camera visibility init
Fixing issue #299

Now 0/100% mixing works
Fixing issue #658

Fixing proper naming of Plasma
Fixing bug #282 and #509. Code cleanup

Removed Click() from meter code and replaced it with attack functions. Fixed the issue of removal via unwrenching
Fixed crappy copy/paste
Fixed crappy copy/paste
Fixed crappy copy/paste
Fixed crappy copy/paste
Updated MetaStation v27G-III.dmm to MetaStation v27G-IV.dmm
-Engineering foyer maintenance door now opens for atmos techs too
-Supply Mailroom maintenance door is now for supply-access only
-Singularity cameras are now EMP-proof
-Added P.A.C.M.A.N. portable generator to engineering storage
-All S.M.E.S. units are as vanilla, with 50k outputs and inputs at roundstart
-Missing disposals pipes re-added in the warehouse and interrogation room listening desk
-Missing camera in misc. research has been added, shows up both on the telescreen in the room and the station-wide CCTV system
-Research break room now has the correct area designation, one tile was set as 'space'
-Missing Starboard Maintenance APC has been added behind the bar
-Aft Maintenance APC has been moved from behind the medbay sec desk to the more central aft maintenance between escape and research.
-Missing Port Maintenance APC has been added between the chapel and library
-Area designations around the vault have been improved, preventing teleportation-to-space incidents
-Area designations around port/fore areas of maintenance have been changed to better suit their names.
-Fore Maintenance APC has been named correctly (previously EVA Maint APC), and moved up slightly, by the inner brig corridor.
-Extra floating lightswitch removed from genetics
-Medbay breakroom maintenance door is now medical-access only
-HoP desk shutter has been replaced with a blast door to make it easier to click the windoors
-Extra newscaster removed from HoP's office
-Missing Request Console added to HoP's office
-Missing virology bed added
-Curtains in the chapel funeral parlour should now be open, not just appear open
-Lovely dressers have been added to the captain's office and some rooms in the dormitories
-A missing wardrobe has been added to cabin 4 of the dorms
-Various objects moved around in the Captain's Quarters, and a razor and flask have been added.
-A box of glorious medals has been added to the Captain's office.
-Lights have been removed from space at entrances to virology and xenobiology external modules
-Other locations with space tiles - bridge, etc - now have a space area designation, to prevent teleporting-to-space issues with wizards
-Robotics consoles have been replaced with current vanilla versions and the area designation changed too, hopefully this will fix any issues syncing
-Inner brig blast doors are now below the actual doors, so you can still use the doors when the blast doors are closed
-Cloning door id fixed
-Intercom added to HoP's office
Merge pull request #773 from Metacide/master

Updated MetaStation v27G-III.dmm to MetaStation v27G-IV.dmm