Vendor fixes

Fixes some bugs, makes vendors drop refillers on deconstruction and
generally use refillers more
Fixed origin_tech in manipulator items
Fixed origin_tech in pacman circuitboard
Removed redundant origin_tech declarations

Some of them were misspelled, too.
Merged two lines with origin_tech

One used to overwrite the other.
Replaced empty string with null in origin_tech

Changed it to keep in line with what seems to be a standard.
Changed toy double saber's origin tech to null
Fixed origin_tech in lesser scroll
Fixed origin_tech in both weapons
Fixed origin_tech in experimental welding tool
Long overdue fixes to the Polaroid cameras.

- Mobs lying down are captured properly.
- Hair and other coloring is captured properly.
- Darkness is now captured, though other area effects are not.
- Object layering is much more accurate, though still not perfect.
- Objects that were missing should now be visible.
- Objects that should not have been visible should now be gone.
- Some objects (like blood trails) are not yet captured properly.
Merge pull request #2 from tgstation/master

Trying to update my stuff
Merge pull request #3 from Sugarette/master

Wonder if it works
Fixed coloring, overlays on overlays, and blood trails.
Fixes the crayon letter 'S'.
Removes the away mission box2550
removes the chance of your hat flying off
I forgot the .dme! For the away mission removal
Fixes an unequip runtime
Merge pull request #2837 from YotaXP/ssssssssssss

Fixes the crayon letter 'S'.