Fixes incorrect background-position declarations. See r89177b5
Adds nl_NL
Fixes access_query exceptions for bp_moderate users
Fixes directory tag clouds for global directories

When moving to global directories (vs group directories only) in BP Docs 1.3,
I inadventantly broke most of the directory tag filtering functionality. This
changeset restores it.
Adds has-attachment filters to directories
Improved styling for attachment filters
parity
Refactors the directory filter interface

Also moves Search to its own filter interface, for better consistency
Switches to scss

Also lightens background colors for greater contrast in tables
A bit of css reorg
More padding on attachment list
Lightens edit toggles and swaps +/- with glyph
Shrink text size on doc tabs
Only show Attachments section if there are attachments
Edit page juggling
Reinstates admin setting for group tab. Fixes #235
Additional JS for ensuring directory filters are hidden onload
Merge remote-tracking branch 'upstream/1.4.x' into 1.4.x