The change is for making sure the styling is working for the blocks.

* make file(s) to download use bh icons, metadata on new line
* resume attachments to use icons (buggy but apparently necessary)
* show file(s) to download titles on hover over link
* get rid of '-' for file metadata for size etc...
* fix the editing/display descrepancy of tagged/recent posts titles

Change-Id: Iad7bb30944f5924b43eca96993e3334120076c05
Signed-off-by: Lisa Seeto <lisaseeto@catalyst.net.nz>