do not ask for superuser creation

will do that later on the doc
missing information about data and profiles
new version don't depend on geodjango
Merge pull request #299 from santagada/fix-geodjango-macosx

new version don't depend on geodjango
Merge pull request #298 from santagada/fix-installation-docs

Fix installation docs
Add @santagada to CONTRIBUTORS.
Remove the permission controls
bump the date