- Fixes [5](https://github.com/ExCiteS/geokey-epicollect/issues/5): Returns an error if latitude or longitude are not set
- Fixes [12](https://github.com/ExCiteS/geokey-epicollect/issues/12): When is not set or a non-existing category id is used, an error is return to the client.
- Fixes [13](https://github.com/ExCiteS/geokey-epicollect/issues/13): `Location` field is now required by default
- Fixes [14](https://github.com/ExCiteS/geokey-epicollect/issues/14): Returns an error if the a file with the file name has not been registered with the contribution.
- Allows uploads of files with `full_image` flag, instead of `thumbnail` only