Merge branch 'release/0.4' into develop
Merge branch 'hotfix/0.4.1' into develop
Merge branch 'hotfix/0.4.2' into develop
Merge branch 'hotfix/0.4.3' into develop
Merge branch 'hotfix/0.4.4' into develop
[Auth] Adds property "image" to InfoEntity

* If an image id is set in the entity the builder injects a relation entity
  to the contact image.
[Applications] Adds ability to forward an application via email.

* Adds new mail plugin "Forward"
* Adds a small forward email form to application detail page
  Currently this works only via ajax
Merge branch 'feature/Applications-forward_application_via_email' into develop
[Applications] Refactor assertion for application access.

* Now one Assertion handles all access. (Currently only "read" and "delete");
* Small fixes and improvements in Acl and Authentication handling
Merge branch 'release/0.5'