Djangopypi2

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* Fix DOAP views and add links to them from package and release views
* Add pypi_manage app

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* New pypi_metadata app, holds only package metadata
* /simple/ interface is case insensitive
* New pypi_packages app, split out of pypi_frontend, doing only package management
* From now on pypi_frontend only implements scripting interfaces (xmlrpc, distutils, doap)
* Removed pypi_config app
* Add missing TEMPLATE_CONTEXT_PROCESSORS to website.settings
* Add pypi_users for showing user profiles
* Add Shpinx docs

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* Allow additional settings in ~/.djangopypi2/settings.py
* Fix bug in distutils' upload causing upload to fail
* Fix bug causing uploaded files to be saved with the wrong name

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* Fix mirroring not handling ``simple`` method

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* Remove policy from MirrorSite
* Redirect to first enabled mirror site when package is not found locally

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* Organize code in distutils views
* Detect binary platform (in case of bdist_*) from filename