Bug 1827811: Journal changes

Journal changes:
Change the modal contents to not show post contents or attached files.
Recent posts and Tagged posts (if not in full display) now expandable with post contents and comment links.
Attached files on page block now links only to download and not to display further metadata.
Cleaned up artefact.php links.
remove metada that will show on entry on page from also showing in modal
stop background page scrolling when the modal is opened and "Advanced licensing" is selected.
add the blogpost_render_in_modal.tpl file
get rid of scrolling for data-toggle collapse
add block-header to journal, journal entry
add titles as modal links for recent posts and tagged journal entries
add comments and details icons for recent posts and tagged journal entries
fix things from code review

behatnotneeded

Change-Id: Ic63ebf9fe42e7848559b5e009584fdff0a40770f
Signed-off-by: Lisa Seeto <lisaseeto@catalyst.net.nz>