Some bugfixes (#7054)

Fixes #7052
Fixes #6984

code/_onclick/cyborg.dm

@@ -97,10 +97,11 @@
 	if(isturf(A) || isturf(A.loc))
 		if(A.Adjacent(src)) // see adjacent.dm
 
-			var/resolved = A.attackby(W, src)
-			if(!resolved && A && W)
-				W.afterattack(A, src, 1, params)
-			return
+			if(W)
+				var/resolved = W.resolve_attackby(A, src, params)
+				if(!resolved && A && W)
+					W.afterattack(A, src, 1, params)
+				return
 		else
 			W.afterattack(A, src, 0, params)
 			return

code/game/objects/items/weapons/RFD.dm

@@ -262,8 +262,6 @@ RFD Service-Class
 	number_of_modes = 5
 
 /obj/item/weapon/rfd/service/resolve_attackby(atom/A, mob/user as mob, var/click_parameters)
-
-
 	if(istype(user,/mob/living/silicon/robot))
 		var/mob/living/silicon/robot/R = user
 		if(R.stat || !R.cell || R.cell.charge <= 0)

code/modules/materials/material_sheets.dm

@@ -6,7 +6,6 @@
 	throw_speed = 3
 	throw_range = 3
 	max_amount = 50
-	center_of_mass = null
 
 	var/default_type = DEFAULT_WALL_MATERIAL
 	var/material/material

html/changelogs/190924-bugfix_rfd.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.  
+author: Ferner
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes: 
+  - bugfix: "Fixed missing impact wrench sprites, fixed rfd-s not working for stationbounds, fixed pixel-precision when placing material sheets on tables."