Remove inheritance from PolyModel in Answer and Linkable model. Replace PolyModel inheritance with base.ModelWithFieldAttributes. A little explanation why we are trying to get rid of PolyModel. We decided to use PolyModel in order to get support for model inheritance in App Engine, however as we know this was a hacky workaround which added inheritance_line property to each model. Recent commits which added Linkable model caused our data viewer in admin console to show only one model "Linkable" since all of the classes inherited from it. Basically datastore viewer was useless plus we had a really big mess in datastore since everything was of one kind (Linkable). It's almost like creating one huge table in SQL database. Upcoming commits will eliminate all usage of PolyModel and finally remove PolyModel from our repository. We are still using inheritance however this doesn't modify how models are saved in data store so basically it's like copy and paste of properties from parent models. Patch by: Pawel Solyga, Sverre Rabbelier

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Third-party code that is *not* part of the application image (the Google App

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Engine SDK in trunk/thirdparty/google_appengine, for example) belongs in

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trunk/thirdparty.  For third-party code that *is* part of the application

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image, see the notes in trunk/app/README.

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== THIRD PARTY LICENSES ==

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Third-party code must also include a license text file, named LICENSE or

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COPYING, in the package subdirectory.  If the third-party package subdirectory

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is maintained automatically with a tool such as svn_load_dirs.pl (which

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removes files, such as license text files, that were added later to the

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"target" directory), place the license text file in the trunk/app directory

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and add the package name as a suffix.

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