Fix issues found by ebn
Summary:
http://ebn.kde.org/sanitizer/reports/kde-4.x/applications/dolphin/index.html
I ignored the Prefer 'folder' over 'directory' issue, since it was a false positive.
Test Plan: meinproc5 still work and no visual change.
Reviewers: yurchor
Reviewed By: yurchor
Subscribers: yurchor, kfm-devel, kde-doc-english
Tags: Dolphin, Documentation
Differential Revision: https://phabricator.kde.org/D27547