changes:
- use correct API
- rewritten roles/privs
- removed all rendering methods (note: this is true for all DataObj/*)
changes:
- use correct API (session -> repository etc)
- a few required adjustments to have ACL working
changes:
few adjustments to make History work with the generic 'revision/history' dataset properties
diffs are now stored as JSON rather than XML: JSON does not require special parsing + JSON and PERL data structures are equivalent