Patch notes
----
* 2018/01/19 - v0.3
  * Updated references
  * Updated error messages
  * Changed mentions of "score" to "length" (in code and manuals)
* 2017/09/20 - v0.2.2
  * Many minor bug fixes
  * Updated display management
* 2017/05/01 - v0.2
  * Added polymorphic characters management
  * Added `$length` element to `NA.matrix` objects (is generated from `apply.reconstruction`)
* 2017/04/27 - v0.1
  * Passing first version