Fixing encoding bugs

Patch by Thomas Pilarski <thomas.pi@arcor.de>

Signed-off-by: Eduardo Lima (Etrunko) <eduardo.lima@openbossa.org>

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch master
# Your branch is ahead of 'origin/master' by 4 commits.
#
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#	modified:   plugins/canola-core/fs/model.py
#	modified:   plugins/canola-core/settings/media_library/model.py
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#	plugins/canola-core/settings/media_library/model.py.orig
