Django-adminactions

* fixed :ghissue:`55`
* fixed :ghissue:`51`
* added selenium tests
* pulled out tests from main package and use of py.test
* removed demoproject (use `make demo` instead)

* fix mass_update bug that caused all records in a table to be updated (thanks jht001)
* Added timezone support to csv and xls export

* fixed :ghissue:`33`
* fixed :ghissue:`20`

* fixed :ghissue:`26`
* add feature to :ref:`use callable as columns <export_with_callable>`
* add feature to :ref:`export dictionaries <export_with_dictionaries>`
* new action :ref:`export_as_xls`
* added custom headers to :ref:`export_as_csv`
* new permission :ref:`adminactions_massupdate`
* new permission :ref:`adminactions_merge`

* improved :ref:`export_as_csv`
* Django 1.6 compatibility
* Added `modeladmin` in providing_args of signals: :ref:`adminaction_requested`, :ref:`adminaction_start`, :ref:`adminaction_end`

* new api module
* pull out core export_csv functionalites as `_export_as_csv() <api.htmladminactions.export._export_as_csv>`_ to be used by custom code
* New exported filename callback for easy customize the filename ( see :ref:`filename_callbacks`)
* New registration shortcut `add_to_site() <api.htmladminactions.actions.add_to_site>`_
* New action: :ref:`merge`
* Fixed :ghissue:`9`
* Added :ref:`permissions`
* New signals: :ref:`adminaction_requested`, :ref:`adminaction_start`, :ref:`adminaction_end`