Performance improvements and code cleanup.

* Instruction recognition now made using hash.
* Removed interpreter option in favor to in-code.
* Very long lines broken to keep highlight working in every editor and
  make reading a lot easier.
* Removed piping thru "cut" in favor to perl re.
* Now executable with spaces in name can be analized (but we still have
  problem with single quotes)
Merge pull request #1 from pernatiy/master

Performance improvements and code cleanup.