Added alpha, revised transparency floodfill from the outside.

Conflicts:
	shapes/Electrical/ac1_h.png
	shapes/Electrical/ac1_v.png
	shapes/Electrical/ac3_h.png
	shapes/Electrical/ac3_v.png
	shapes/Electrical/ac_h.png
	shapes/Electrical/ac_v.png
	shapes/Electrical/bel_l.png
	shapes/Electrical/bel_r.png
	shapes/Electrical/bel_v.png
	shapes/Electrical/buzzer_l.png
	shapes/Electrical/buzzer_r.png
	shapes/Electrical/buzzer_v.png
	shapes/Electrical/carrier_1_h.png
	shapes/Electrical/carrier_1_v.png
	shapes/Electrical/carrier_1wire_h.png
	shapes/Electrical/carrier_1wire_v.png
	shapes/Electrical/carrier_2_h.png
	shapes/Electrical/carrier_2_v.png
	shapes/Electrical/carrier_2wire_h.png
	shapes/Electrical/carrier_2wire_v.png
	shapes/Electrical/carrier_3_h.png
	shapes/Electrical/carrier_3_v.png
	shapes/Electrical/carrier_3wire_h.png
	shapes/Electrical/carrier_3wire_v.png
	shapes/Electrical/carrier_inair.png
	shapes/Electrical/carrier_inground_h.png
	shapes/Electrical/carrier_inground_v.png
	shapes/Electrical/carrier_intube_h.png
	shapes/Electrical/carrier_intube_v.png
	shapes/Electrical/carrier_inwall_h.png
	shapes/Electrical/carrier_inwall_v.png
	shapes/Electrical/carrier_n_h.png
	shapes/Electrical/carrier_n_v.png
	shapes/Electrical/carrier_nwire_h.png
	shapes/Electrical/carrier_nwire_v.png
	shapes/Electrical/carrier_onwall_h.png
	shapes/Electrical/carrier_onwall_v.png
	shapes/Electrical/dc_h.png
	shapes/Electrical/dc_v.png
	shapes/Electrical/device.png
	shapes/Electrical/devicefurnace.png
	shapes/Electrical/dispatch_box.png
	shapes/Electrical/fuseauto_h.png
	shapes/Electrical/fuseauto_v.png
	shapes/Electrical/fusemelt_h.png
	shapes/Electrical/fusemelt_v.png
	shapes/Electrical/grounding_d.png
	shapes/Electrical/groundingstrip_v.png
	shapes/Electrical/light.png
	shapes/Electrical/s1p.png
	shapes/Electrical/s2p.png
	shapes/Electrical/s3p.png
	shapes/Electrical/s4p.png
	shapes/Electrical/s_light.png
	shapes/Electrical/sd1p.png
	shapes/Electrical/sd2p.png
	shapes/Electrical/sd3p.png
	shapes/Electrical/sd4p.png
	shapes/Electrical/socket_l.png
	shapes/Electrical/socket_r.png
	shapes/Electrical/socket_v.png
	shapes/Electrical/socketchild_l.png
	shapes/Electrical/socketchild_r.png
	shapes/Electrical/socketchild_v.png
	shapes/Electrical/socketground_l.png
	shapes/Electrical/socketground_r.png
	shapes/Electrical/socketground_v.png
	shapes/Electrical/socketgroundchild_l.png
	shapes/Electrical/socketgroundchild_r.png
	shapes/Electrical/socketgroundchild_v.png
	shapes/Electrical/sx1p.png
	shapes/Electrical/sx2p.png
	shapes/Electrical/sx4p.png
	shapes/Electrical/sy1p.png
	shapes/Electrical/sy2p.png
	shapes/Electrical/sy3p.png
	shapes/Electrical/sy4p.png