Re-named a bunch of classes to be more consistent
Hooked up basic 'raw'-file parsing
Eliminated the requirement to have a 'file_address' as part of the segment, updated tests accordingly
Added the start of an analyzer
Got some extremely basic disassembling working
Fixed some minor display issues
Create all the nodes at once, rather than creating them individually (and slowly)
Added support for 'undo'
Get refs + xrefs working
Changed some tests to reflect a design/bug fix - undefined nodes now return an empty array for their references, not nil
When displaying assembly, don't display xrefs from the previous address anymore
Use a depth-first analyzer instead of going through all the addresses