versioin 0.1.4
- Updated C-code for compatability with CLANG compiler (Thanks
  to Brian Ripley for pointing out the specific noncompliance 
  with WRE)

version 0.1.3
- BREAKING: fixed undefined behavior in SFH algorithm. This means
  that sfh will give different integer output than before.

version 0.1.2
- fixed error caught on CRAN

version 0.1.1
- Switched to 'tinytest' framework
- Registered native routines as required by CRAN/WRE

version 0.1.0
- First release