Release Name: 0.2.4

Notes:
Few updates + new pretty_print can be fed as C code (excepted for powers)


Changes:
scalc (0.2.4)

  * Now pretty_print parentheses correctly, though admittedly too much !
  * Added a std::string interface for registering variable names
  * Added some few tests about this

 -- Vincent Fourmond <vincent.fourmond@9online.fr>  Mon Aug  2 19:03:07 CEST 2010