2. new command 'u|disasm|disassemble mode-switch' - switch between Intel and AT&T disasm syntax
3. new command 'u|disasm|disassemble size=n' should be used instead of old 'set $disassembler_size=n'
4. 'h' is a new alias for 'help' command
- move crc.cc from debugger to bochs folder and make it projct-wide and not local for debugger
- added new 'info sse' command for debugger
- extend 'modebp' command to break on any mode change
- remove unimplemened 'info program' function, it is always printed fixed text
- move debugger help to parser, cleanup and simplify it