Add step type field

Merge pull request #49 from rodgomes/master

OPT: add type field for step

Filter release by application, pipelines by release

fixes bugs returning duplicate entries

Field names for datetimes include _at at the end

This is done to prevent confusion between boolean variables and datetime variables (started -> started_at)

Add started and ended datetime fields to steps, use in closing release

Merge pull request #45 from JeroennC/master

Timezone aware tests, set release start and end from steps start and end

Close release with more information

Merge pull request #43 from rodgomes/master

BREAK: fill in extra fields when closing release

Close releases automatically

Merge pull request #41 from rodgomes/master

OPT: add close release if pipeline finished

Create releases automatically

When new pipeline runs are created, they should be added to a release so we can see which pipeline runs are part of a release. If there is no open release for that application, one should be created.

Releases linked to more than one pipeline run

0.23.0

Merge pull request #38 from kpn/feature/many-to-many-releases-pipelin…

Add sequence IDs on steps for display steps in the right order

Merge pull request #36 from kpn/feature/sequence-id

NEW - Added sequence_id to determine order for displaying

Admin display improvements

Merge pull request #35 from kpn/feature/admin-list-display

Feature/admin list display