Prepare for more development.
Fix "can't convert Hash into String" occuring when some section's config is a Hash not a JSON encoded Hash
Update readme
Remove num_scouts attribute from Section (OSM always sets this to 999)
Add new attributes to Section (caused by My.SCOUT). closes #44
Add field columns to todo part of readme.
Add new OSM attributes to Event
Change Events to keep up with OSM changes. closes #43
Make default parent label for event column an empty string
Add default for allow_changes in Event.
Prepare for release
Merge branch 'staging'