Ptahcrowd

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- Added python 3.3 and 3.4 support

- Removed python 3.2 support

- Added user defaults validated and suspended

- Added possibility to login with username and email

- Changed CrowdUser model columns:
- `name` to `fullname`
- `login` to `username`

- Use `ptah.renderer`

- Use `ptah.form`

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- Added Groups.

- Added user default roles.

- Added HTTPForbidden view.

- Added `admin` user auto creation.

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- Initial release