roo version 0.8.1 has been released!

roo can access the contents of OpenOffice-, Excel- or Google-Spreadsheets

Changes:

## 0.8.1 2007-12-22
* 3 bugfixes
* fixed a bug with first/last-row/column in empty sheet
* #info prints now '- empty -' if a sheet within a document is empty
* tried to fix the iconv conversion problem
## 0.8.0 2007-12-15
* 2 enhancements:
* Google online spreadsheets were implemented
* some methods common to more than one class were factored out to the GenericSpreadsheet (virtual) class
## 0.7.0 2007-11-23
* 6 enhancements:
* Openoffice/Excel: the most methods can be called with an option 'sheet'
parameter which will be used instead of the default sheet
* Excel: improved the speed of CVS output
* Openoffice/Excel: new method #column
* Openoffice/Excel: new method #find
* Openoffice/Excel: new method #info
* better exception if a spreadsheet file does not exist
## 0.6.1 2007-10-06
* 2 enhancements:
* Openoffice: percentage-values are now treated as numbers (not strings)
* Openoffice: refactoring
* 1 bugfix
* Openoffice: repeating date-values in a line are now handled correctly
## 0.6.0 2007-10-06
* 1 enhancement:
* csv-output to stdout or file
## 0.5.4 2007-08-27
* 1 bugfix
* Openoffice: fixed a bug with internal representation of a spreadsheet (thanks to Ric Kamicar for the patch)
## 0.5.3 2007-08-26
* 2 enhancements:
* Openoffice: can now read zip-ed files
* Openoffice: can now read files from http://-URL over the net
## 0.5.2 2007-08-26
* 1 bugfix
* excel: removed debugging output
## 0.5.1 2007-08-26
* 4 enhancements:
* Openoffice: Exception if an illegal sheet-name is selected
* Openoffice/Excel: no need to set a default_sheet if there is only one in
the document
* Excel: can now read zip-ed files
* Excel: can now read files from http://-URL over the net

## 0.5.0 2007-07-20
* 3 enhancements:
* Excel-objects: the methods default_sheet= and sheets can now handle names instead of numbers
* changed the celltype methods to return symbols, not strings anymore (possible values are :formula, :float, :string, :date, :percentage (if you need strings you can convert it with .to_s)
* tests can now run on the client machine (not only my machine), if there are not public released files involved these tests are skipped