Use a much simpler approach to detect whether BMP files have an alpha channel. Fixes some BMP content being converted to fully-transparent images.
Use a much simpler approach to detect whether BMP files have an alpha channel. Fixes some BMP content being converted to fully-transparent images.

antiufo/JSIL,acourtney2015/JSIL,acourtney2015/JSIL,sq/JSIL,iskiselev/JSIL,iskiselev/JSIL,acourtney2015/JSIL,Trattpingvin/JSIL,hach-que/JSIL,FUSEEProjectTeam/JSIL,TukekeSoft/JSIL,volkd/JSIL,hach-que/JSIL,volkd/JSIL,antiufo/JSIL,hach-que/JSIL,iskiselev/JSIL,sander-git/JSIL,x335/JSIL,FUSEEProjectTeam/JSIL,sander-git/JSIL,sander-git/JSIL,mispy/JSIL,x335/JSIL,mispy/JSIL,mispy/JSIL,sander-git/JSIL,acourtney2015/JSIL,volkd/JSIL,sq/JSIL,TukekeSoft/JSIL,dmirmilshteyn/JSIL,antiufo/JSIL,sq/JSIL,volkd/JSIL,hach-que/JSIL,sq/JSIL,dmirmilshteyn/JSIL,acourtney2015/JSIL,FUSEEProjectTeam/JSIL,iskiselev/JSIL,x335/JSIL,FUSEEProjectTeam/JSIL,antiufo/JSIL,dmirmilshteyn/JSIL,iskiselev/JSIL,Trattpingvin/JSIL,TukekeSoft/JSIL,Trattpingvin/JSIL,mispy/JSIL,TukekeSoft/JSIL,dmirmilshteyn/JSIL,FUSEEProjectTeam/JSIL,Trattpingvin/JSIL,sander-git/JSIL,hach-que/JSIL,x335/JSIL,sq/JSIL,volkd/JSIL