Table Climbing Block Formatting Fixes

Just a little bit of formatting improvements to the table climbing block
in case of solid object, fixes issue with having "You cannot climb a the
reinforced table," and specifies what object is in the way of climbing.
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
New Coffee Cup Sprite and New Canister

-Replaces coffee cup sprite with sprite by Nienhaus
-New atmos canister with sprite by Nienhaus, white base with red
stripes, useful for making custom mixes in order to avoid carrying
around a large yellow HAZARD tank.
Drag and Drop for Operating Table and Cryosleeper

-Allows drag + drop to work on operating tables, surgeon borgs can now
place players on operating table.
-Allows drag + drop to work on cryodorms cryopods, cyborgs can now place
SSDs in cryodorms.
Merge remote-tracking branch 'upstream/master'
Space Helmets No Longer Fall Off

This includes all hardsuits and such, everything based off the
"/obj/item/clothing/head/helmet/space" class. The Ninja helmet is a
child of it, so the line making it not fall off becomes redundant.
Merge remote-tracking branch 'upstream/master'
Merge pull request #497 from TheDZD/master

Misc. Fixes and Changes