avoid potential widget is disposed exception

ref #7215: fix selection of type

ref #7215: add combobox for selecting misapplied name type

ref #7268 Implement own extension point for preferences

Conflicts:¶

eu.etaxonomy.taxeditor.workbench/fragment.e4xmi¶

ref #6925 Implement utility method to open links in external browser

Rename class to avoid duplicate class names

set titleCacheIsNotEmpty protected to be able to override this method

Merge branch 'develop' into wset

ref #7086 Make character editable in details view

fix the recursion of enable or disable distribution details in distribution editor and from factual data view