datacontainer handling for single entity and multiple collections

Signed-off-by: Ondrej Koch <o.koch@zerusnet.com>
support for composed keys

Signed-off-by: Ondrej Koch <o.koch@zerusnet.com>
real-time reactive features (notifications)

Signed-off-by: Ondrej Koch <o.koch@zerusnet.com>
Merge branch 'master' of github.com:ponycloud/rainbow

Signed-off-by: Ondrej Koch <o.koch@zerusnet.com>

Conflicts:
	src/app/tenant/affinity-group/affinity-group.coffee