changed dev-version to 3.5.4
handling uppercase extensions with browse, fixed #200
convert/normalize filename (including tests), fixed #205
placeholder with tests, fixed #201
updated translations
final updates for 3.5.4
changed development version to 3.5.5
Fixed file selection after using search box (CKEditor).

Added CKEditor params to the search form hidden inputs so they persist
after searching.
Merge pull request #212 from timgraham/ckeditor_search_params

Fixed file selection after using search box (CKEditor).
Merge remote-tracking branch 'remotes/upstream/master'

Conflicts:
	filebrowser/templates/filebrowser/index.html
	setup.py