|| search ||
------------
* bytepat and so should be buggy now, bugfix required
* Implement xrefs algorithm
  - We must think on a way to do it more algoritmically
  - implement r_search_xrefs
* Add support for stepped searchs (skip N bytes after every read)
  - minimum distance between hits
  - Enable/Disable chained hits
  - Allow to enable/disable nested hits
  - per keyword
* Enable/Disable nested hits (??)
* Added support for negated searchs (find until no keyword matches)
  - per keyword
  - useful to find the end of a \xff block

Delta key search
================
search: /d 1011
matchs: 405061
