Mark active page in scriptNav
Redundant .row and .col-xs-12
Use .fa-user instead of lorempixel img as we move closer to a PR.
404 page + fine tune ui with new theme.

Redo 404 page.
Fix overflow on the markdown preview in ScripEditMetadataPage.
Fine tune includes/comment for new theme + gutter width.
overflow-x: auto; on .table-responsive
Add placeholder avatar  with fa-user icon on the userPageHeader
Create includes/searchBarPanel
Wrap all modelList tables in a panel.
Disable the user notification li in the header.