* Lambert W branches

* Quoted ")" in function
* Replace pointers to unit when unit type has changed (a different object must be created)

* Enhanced integration

* More functions
* More units

* Increase support for non-glibc systems

* Sane and stable API

* Script/code plugins for advanced functions

* Load data set from csv file

* Complete non-square free factorization

* Simplification of division by polynomial with roots
