Opengever.ogds.models

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- Add `abbreviation` column to admin_unit table.
[phgross]

- Add OGDSService which provides an entry point to query data.
[phgross, deiferni]

- Add `OrgUnit` and `AdminUnit` model definitions, `OrgUnit` replaces `Client`.
[phgross, deiferni]

- Move some functionality from `opengever.core` utility functions to methds on our model classes for better encapsulation.
[phgross, deiferni]

- Add common base-class with query helper methods for all models.
[phgross, deiferni]

- Add `ftw.builder` SQL-Builders for all model classes.
[phgross, deiferni]

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- Fixed backref name of the groups_user join table.
[phgross]

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- Fixed include in MANIFEST that caused previous brown bag release.
[lknoepfel]

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- Moved package to GitHub.
[lknoepfel]

- Added helper function `alter_column_length` (used by upgrade steps in og.core).
[lgraf]

- Increased lengths for `userid` and `groupid` columns to 255.
[lgraf]

- Dropped Plone 4.1 compatibility. Only 4.2 and up are supported.
[lgraf]

----------------

- Final release
[phgross]

------------------

- added manifest.in