Release Name: 0.4.0

Notes:
This is an application which helps you to manage a database for the Monte Carlo simulations. 
For the dtailed usage, see http://nera.rubyforge.com


Changes:
== 0.4.0
* 1 major enhancement:
  * A new format is adopted in parameters_table.
  * The conversion routine from old format to new format is implemented.
* 2 bug fixes: