modules.tags: docstring
ext.principal: initial release

* Introduces `permission_required` decorator for
  `acc_authorized_action`.

Signed-off-by: Jiri Kuncar <jiri.kuncar@cern.ch>
unicodifier moved to base.helpers
sqlalchemyutils -> ext.sqlalchemy finished
register configurations
config fixes and sqlalchemy imports
base.decorators:wash_arguments
invenio.modules.legacy: added __init__.py
tags: removed unused exception
tags: using application config
default values for missing configs