Document domain class will handle lastUpdated field.
Merge branch 'master' of https://github.com/AtlasOfLivingAustralia/fieldcapture

# By chrisala
# Via chrisala
* 'master' of https://github.com/AtlasOfLivingAustralia/fieldcapture:
  Added support for styling and excluding layers from bounds so as to support layers.
  Fix to handle bounding box specified as a LINESTRING.