REP TODOS AND BUGS
- Code is dependant on a little endian architecture. Wouldn't 
  be too much work to change it around. 
- stdin and stdout piping hang on FreeBSD
- droplets are limited by command line length on win32
  (which is shorter than my ...)
- Tag matching (if you don't know what it is, don't worry) 
  doesn't work reliably anymore.
- Internal structures use linear lookups. Should use hash or btree