Cleanup of css, fixes of UI issues for RH demo

- Css changes made for RH Demo and fixes for alignment on relation widgets and combo boxes.
- Fixed selection image not showing when not in debug mode
- Fixed list-attr background is gray on selected, disabled rows
- Removed extra padding on relation lists and comment boxes
- Changes to files in node-datasource are line-endings from CRLF to LF made by .gitattributes