Simulator is just about ready for real-world testing now. Added a simulated

MOS6551 ACIA at address $C000 which does buffered input and output via the
console. Updated the README with a bit more documentation, and bumped the
version number to 0.1 because I'm impatient.

src/test/java/com/loomcom/symon/CpuIndirectIndexedModeTest.java

@@ -1,7 +1,6 @@
 package com.loomcom.symon;
 
 import com.loomcom.symon.devices.Memory;
-import com.loomcom.symon.exceptions.MemoryAccessException;
 
 import org.junit.*;
 import static org.junit.Assert.*;