Log message

Revised version that should be compatible with newer DE1 boards with slow SRAM:
* registered rom_access to reduce propagation delay on SRAM_OE_N (should be
around 8.6 relative to clk50)
* big clean up in frame buffer: all useless SRAM accesses removed, one access
per video_slice - 4 accesses per 8 pixels as it should be

	Modify	/trunk/README.txt	diff
	Modify	/trunk/src/vector06cc.v	diff
	Modify	/trunk/src/video/framebuffer.v	diff
	Modify	/trunk/src/video/video.v	diff
	Modify	/trunk/vector06cc.qsf	diff