ContactService: renaming and add getter method.
Merge pull request #506 from 4teamwork/pg_drop_contact_info

Drop contact info utility
Personaloverview admintabs: show only tasks assigned/issued by the current orgunit.

Fixes Issue #500.
Dropped no longer used query method `all_admin_unit_tasks`.
Merge pull request #507 from 4teamwork/pg_tasklistings_fix

Personaloverview admintabs: show only tasks assigned/issued by the current orgunit.
Add ftw.inflator dependency.
Create admin units and org units from generic setup profile.
Add unit-tests and rewrites for better testability.
Make sure that inflator content-creation runs after gever setup.
Add required group parameters to org-units.
Rename argument client_id to unit_id for org-unit creation.

Hide clients as much as possible, they are meant to go away eventually.
Add upgrade step to rename client to org_unit.
Fix setup wizard.
Don't commit in sql builders but flush instead.

Zope.transaction performs some cleanup operation after a commit, this
seems to include removing all objects from their session. This causes problems
with sqlalchemy relations since they rely on the object being in a session.
Fix imports and use OrgUnit instead of Client.

Change method calls to attribute access and fix constructor paramters for
OrgUnits.