Resolved #164.
Merge pull request #168 from frmwrk123/enhancement/formError

Resolved #164.
Added importer object types.
Added page importer type.
Added importers.
Added Wordpress exporter.
Added missing language variables.
Fixed #171.
Merge pull request #172 from frmwrk123/fix/mobileOptimization

Fixed #171.
Added missing use statement.
The page importer does safe the relation to the content now.
Added update files for objectType and languages.
Prepare test update to beta 8 pl 1.
Fixed version number.
Categories are now correctly linked with contents.
Added category importer.
Fixed whitespace.
Added missing language variable.
Category slugs are now properly retrieved.
Content and page slug is now properly retrieved.