roo version 0.2.3 has been released!

roo can access the contents of OpenOffice-Spreadsheets

Changes:

## 0.2.3 2007-06-02
* 3 enhancements:
* more robust call att Excel#default_sheet= when called with a name
* new method empty?
* refactoring
* 1 bugfix:
* bugfix in Excel#celltype
* bugfix (running under windows only) in closing the temp file before removing it

## 0.2.2 2007-06-01
* 1 bugfix:
* correct pathname for running with windows