Fix for #408
[#374]Add field for owner organisation
[#374] Test what objects are available here
[#374] Show warning only when organisation content is owned
Merge remote-tracking branch 'origin' into feature/374_org_api_flag
[#434] Move akvo/rsr/utils.py to akvo/utils.py
[#434] Remove old instances of utils.py
[#438] Links in updates are urlized

If a link is present in the markdown update, but not marked
as a proper link we use the urlize template tag to create a
link from the url. This link will show the full url as the link

We do not urlize texts that are limited in chars. Examples of this
is the project list and the small preview on the main project page.
The motivation for this is that it might be unsafe to deal with.
Bumping MySQL driver version from an RC to a full release
[#381] Add Timestamp mixin

Add TimestampMixin abstract models class to use as mixin for models
needing timestamp fields for creation and last modified date.
[#381] Add TimestampsMixin to Organisation, Project and ProjectUpdate

Add TimestampsMixin to the models to enable automatic time stamping of
both creation and last modified dates.
[#381] Add schema migration for the timestamp fields in Organisation,
Project and ProjectUpdate.

Note that this is only a re-naming of the existing timestamp fields in
ProjectUpdate.
[#381] Refactor use of ProjectUpdate.time to ProjectUpdate.created_at

Find all uses of ProjectUpdate.time and change to
ProjectUpdate.created_at.
[#436] Add ProjectUpdate.user_agent field

The user_agent field is to record the device/user agent used when
creating updates. This is mainly to track the kind of mobile phone used
when bugs show up.
Merge pull request #439 from akvo/feature/438-urlize-updates

[#438] Links in updates are urlized
Merge pull request #418 from akvo/annamarthe-408

Fix for #408
Merge branch 'feature/381_timestamp_fields' into feature/445_avoid_duplicated_updates
[#381] Add script to migrate creation times from django_admin_log to
created_at fields for Organistioan and Project

The script looks for ADDITION event in the django_admin_log and copies
the time of the event to the created_at field for the object.
[#381] Fix API field names for ProjectUpdate.created_at and
ProjectUpdate.last_modified_at in the API

To keep the API signature from changing the timestamp fields for
ProjectUpdate are exposed with their old names "time" and
"time_last_updted" in /api/v1/the project_update API resource.
[#445]Add uuid field to db