GitLab

pending to leave the project.

Style fixes and minor corrections

send_mail

Conflicts:
	snf-astakos-app/astakos/im/models.py
	snf-astakos-app/astakos/im/views.py

Conflicts:
	snf-astakos-app/astakos/im/tables.py

dynamic column which contains available project action based on user/project
relation

instead of raising a missing `next` parameter error.

properties and obj string representation

select_for_update for project and membership

* It should optionally work with user dictionary 
instead of contacting astakos.
* Fix pep8 errors

Merge branch 'feature-astakos-tables' of https://code.grnet.gr/git/synnefo into feature-astakos-tables

- Use django-tables2 to render table