pyFlickrBrowser: Documentation

Changelog:

0.3.1
- Modified location of 'properties' button
- Added new 'save-as' and 'properties' dialog
0.3:
- Added search by tag functionality.

Future / To-Do:

- Investigate and add thread support so that application does not "hang" everytime connection is made to the net
- Add the Add tags function to own photos.
- Investigate / Add a way to authenticate and use full functionality of Flickr.com API
- Fix Uploadr so that it can run without independently installing it
- Investigate thumbnails for preview
- Make rpm for Fedora