Fixed CGA, Hercules, and MDA for the second time, per suggestion and code from basic2004;

Added IBM PS/2 Model 30 emulation per mainline PCem patch from dns2kv2;
Commented out the Chips & Technologies VGA 451 as it needs further work;
Added the ability to disable XTIDE;
Prepared the icon that will be used for stable builds.

src/Makefile.mingw

@@ -9,7 +9,7 @@ OBJ = 386.o 386_dynarec.o 386_dynarec_ops.o 808x.o acer386sx.o acerm3a.o ali1429
 	device.o disc.o disc_86f.o disc_fdi.o disc_imd.o disc_img.o disc_random.o disc_td0.o dma.o fdc.o fdc37c665.o fdc37c932fr.o fdd.o fdi2raw.o gameport.o headland.o i82335.o i430hx.o i430lx.o i430fx.o \
 	i430nx.o i430vx.o i440fx.o ide.o intel.o intel_flash.o io.o jim.o joystick_ch_flightstick_pro.o joystick_standard.o joystick_sw_pad.o joystick_tm_fcs.o keyboard.o keyboard_amstrad.o keyboard_at.o \
 	keyboard_olim24.o keyboard_pcjr.o keyboard_xt.o lpt.o mcr.o mem.o memregs.o model.o mouse.o mouse_ps2.o \
-	mouse_serial.o ne2000.o neat.o nethandler.o nmi.o nvr.o olivetti_m24.o opti495.o pc.o pc87306.o pci.o pic.o piix.o pit.o ppi.o ps1.o rom.o rtc.o \
+	mouse_serial.o ne2000.o neat.o nethandler.o nmi.o nvr.o olivetti_m24.o opti495.o pc.o pc87306.o pci.o pic.o piix.o pit.o ppi.o ps1.o ps2.o rom.o rtc.o \
 	scat.o scsi.o serial.o sis496.o sis85c471.o sio.o sound.o sound_ad1848.o sound_adlib.o sound_adlibgold.o sound_cms.o \
 	sound_dbopl.o sound_emu8k.o sound_gus.o sound_mpu401_uart.o sound_opl.o sound_pas16.o sound_ps1.o sound_pssj.o sound_resid.o \
 	sound_sb.o sound_sb_dsp.o sound_sn76489.o sound_speaker.o sound_ssi2001.o sound_wss.o sound_ym7128.o \