[BUGFIX] adjust namespaced class call

Change-Id: I1064c23be7603b3e8a5df6709cb7b967105f81cf
Fixes: #41945
Releases: 6.0
[BUGFIX] iconViewHelper usage in BE templates

The iconViewHelper usage in BE templates is referencing non existing (outdated??) icon names.

Change-Id: Ib71b518fe851ff867a3ee9ab295b576fe22ac2f0
Resolves: #40666
Releases: 6.0
[FEATURE] introduce namespaces

make the extension ready for 6.0

Change-Id: Ic888ea073e271fca1f382fe707c1b806b22d30d5
Resolves: #41913
Releases: 6.0
[BUGFIX] Fixed wrong phpdocs

Releases: 6.0
Resolves: #41974
Change-Id: I2aaa9e3903370bb2530d5abc2cd1f6cf408f68f2
[TASK] initialize the properties of the model

Many properties of the models are not initionlized and so it is not possible to
test the getter of the property.

Change-Id: If88e6929cbee19cd550b5e4b09c7bba7e4b7d2de
Resolves: #41982
Releases: 6.0
[BUGFIX] Replace ExtensionManager with ExtensionManagementUtility

Fixes: #42694
Releases: 6.0
Change-Id: I1f98f9841cebaa67832b9d2def0160a3dc931631
[BUGFIX] Replace Generic\ObjectStorage with Persistence\ObjectStorage

Fixes: #42695
Releases: 6.0

Change-Id: If7c4f29194e6d4a883ff6c47ed372b42765b1bda
Merge "[BUGFIX] Replace Generic\ObjectStorage with Persistence\ObjectStorage" into 6_0
Merge "[BUGFIX] iconViewHelper usage in BE templates" into 6_0
[FEATURE] Unit tests for the blog example

This patch adds unit tests for the models of the blog example.

Change-Id: I669c2c78e3e690f15291e1eab24805392f00ee2d
Resolves: #39153
Releases: 6.0
[Bugfix] Correct generated links to tag filter

Corrects the link generation to the proper tag and blog.

Change-Id: I2c8c936f0b3b6946f9cf4e6111bd0b0b069667ab
Fixes: #41987
Releases: 6.0
[BUGFIX] Backend Module does not work for some posts

This fixes the viewhelper declaration to namespaces in Backend
Templates.

Releases: 6.0
Fixes: #41985

Change-Id: If548a3d4b952df717f9c0d7926d3c45f9fcfd90c
[BUGFIX] Backend module does not work

In the actual backend modul are some bugs. The new and edit action
templates uses the outdated f:form.textbox viewhelper. And because of
this you can save a new blog without entering the requiered title.

The markup of the f:form.select was outdated to and if you don't have
a administrator set you get an error after saving the blog.

This patch solves these promblems.

Fixes: #41742
Releases: 6.0

Change-Id: I18c74084bb706063304c7fa6703b00a5f9afb92e