FIX issue with groups and UI

v1.0.3

fix issue when entity removed from group

v1.0.2

This release adds functions to:

• list all entities
• list all groups

This release also implements the following bug-fixes:

• remove entities from groups when they are deleted (before db was inconsistent when an entity was deleted without removing it from the groups where it belonged, now this happens automatically).

V1.0.1

This version fixes the issue with inconsistencies produced during group deletions

First release

this release uses level-db and it comprises the module extracted from agile-idm-web-ui.
it also uses env variables to decide whether or not to print debugging info.