- add missing support for polygon in shapefile exports
3.2.1
-----------------------
**Bug fixes**
- constant size numbers for POI enumeration - change nav icons size depending on page height instead of width - draw circle geometries if radius property exists
3.2.0
-----------------------
**New features**
- Serialize polygons to GPX
**Bug fixes**
- Fix POI enumeration if > 26 * 26
3.1.4
-----------------------
**Bug fixes**
- Fix UnicodeDecode Error
3.1.3
-----------------------
**Bug fixes**
- Fix GenericRelation
3.1.2
-----------------------
**Bug fixes**
- Fix AutoLogin middleware with django 1.8
**Internal changes**
- Prepare code to compatibility python2 / python3 - Use GenericRelation for Paperclip, to permit prefetch_related on them - Upgrade requirements