Version 0.11.1
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* Fixed a document deletion regression
* Improves error detection when importing keys from a keyserver, catching
  the exception KeyImportError and not KeyFetchingError
* Fixes a wrong method call when verifying signatures for the first time upon document uploading
* django-compress is now disabled by default to avoid problems when deploying with DjangoZoom
* Improve post metadata set delete redirection
