fabfile to get sightings from ias-ess [#51787361]
add storages and change live default file store to S3.
moved fields around and simple admin
moved fabfile & image work [#51787361]
sorl explicit version
added fabric to localdev.txt [#51787361]
remove S3 from live.py
tweak admin (PEP-8) and add tree.
made tree admn a bit more useful
Merge pull request #6 from adapt/feature/import-sightings

Import sightings from IAS-ESS (including images)