add viewhelpers for help with status pages

The general status viewhelper is intended to handle tabbing for the
status page and to initialize the corresponding Viewhelper based on the
current tab. It also provides render functionality for the partial which
belongs to the current tab.
add the basic status controller.
add views utilizing the viewhelpers.
change internationalization for status

Change the layout of status internationalization
to a nested one and add missing information in the
process.
remove unnecessary loading of module in viewhelper

Remove the unnecessary loading of a module that is already provided by a
view. Instead we'll load the view as attribute into the Viewhelper and
call the specific method on that object.
add baseclass for viewhelper and use it.
add processing iris into the status mix

Combine the data of processing ontologies, if possible, with the data of
processing iris.

However distributed ontologies never have processing iris (it seems) and
single in distributed ontologies are never processing (as per
version/own state). This should probably be investigated.
add status-specific styling.
change the way status calls the tab-count procs

Instead of defining the count methods on the StatusViewhelper itself,
which then in turn act as delegate-functions, we'll just pass an
argument to the proc in form the actual viewhelper instance. This allows
for prevention of duplication.
add a rudimentary status-error tab.
start a feature for processing ontologies.
add basic display of errors tabs in status.
add basic overview tab to for status view.
disable status-tab-links if count is zero

Usually a count of zero reflects that there
is nothing to see inside the tab.

Also changes the way css-classes are determined by
outsourcing this to its own method.
use merge to generate states-count hash

This has the benefit of preserving the inherent
ordering of the STATES array.
use overview as a default status tab.
improve integration-test for processing ontologies.
Merge pull request #1004 from ontohub/996-add_admin_status_pages

996 add admin status pages