Feature: #EXTBLOG-55 - Add Backend Module for post management

See https://jira.typo3.com/browse/EXTBLOG-55

See https://jira.typo3.com/browse/TE-14

Description

The backend module contains a new post management module.

Impact

With new backend module it is possible to search and filter blog post, jump to the edit mode of a post, tag or category.