FileBrowser: stubs for view and ctrl
FileBrowser: BreadCrumb navigation and file service
FileBrowser: ListNavigation
FileBrowser: implementing FileAdapter and LocalFile
FileBrowser: Navigation update
Merge pull request #54 from mpsonntag/filebrowser

Filebrowser
Generic bread crumb navigation

This should fix #55.

This class is completely untested but should be merged in order to use it in the file browser.
Merge pull request #57 from stoewer/gndata-editor-55

Generic bread crumb navigation
FileBrowser: Unstyled favorites
FileBrowser: Replace previous navigation with BreadCrumbNav
FileBrowser: Basic favorites layout
FileBrowser: Fix absolute path in file favorites
Merge pull request #58 from mpsonntag/filebrowser

Filebrowser

LGTM
ListCell: Two lines list cell class
Merge pull request #59 from mpsonntag/listcell

ListCell: Two lines list cell class