Support for OpenOffice text extraction

Hi, here is the patch.

>hi nicolas,
>
>thanks for your offer to contribute your openoffice textfilter, that's greatly appreciated!
>
>i suggest you post a jira 'Improvement' or "New Feature' issue and attach your code as an svn patch. somebody will take care
>of it (i assume marcel), i.e. review your contribution and provide feedback/further instructions.

>cheers
>stefan

>On 2/2/06, Nicolas Jouanin <nicolas.jouanin@gmail.com> wrote:
>>
>>
>>
>> Hi Stefan,
>>
>>
>>
>> I work with Martin Perez, main developper of jLibrary.
>>
>> Therefore, I developed a class which extracts metadata and text
>> content from any openoffice file (that was not the hardest job). This
>> class is already used into jLibrary.
>>
>> As Martin suggested me, I used this class to create a new TextFilter
>> subclass into textfilters contrib project. I downloaded textfilters
>> project from svn, created my class into the project tree and tested it
>> with a test class , just like it was done with the other extractors.
>>
>> I can send you the code if you want to review it, or just tell me how
>> I can commit it.
>>
>>
>>
>> Regards,
>>
>>
>>
>> Nicolas.