Blog, category, tag and single post view changes

Applying a card-based style to the blog and related pages.
Adjustments to style

font sizes, use BP profile for Author profile link on stories
Correct category list

The WP function 'get_the_category_list' returns anchors if you include
a separator, list items if you don't. I included a zero-width space to
get anchors with no space between.
Tag archive header change

Added "tag" iconography to tag archive header and removed "Tag: " from
the title.
Tag and category archive header

Improve legibility of text in header blocks
Merge dch-foa page into blog alternative branch
Single post previous/next navigation changes

style changes on large screens only
Merge branch '2.x' into blog-alternative

Conflicts:
	page-templates/template-grant-writing.php
	style-ie.css
	style.css
Regenerate css files
Merge branch '2.x' into blog-alternative

Conflicts:
	page-templates/template-grant-writing.php
	style.css
Merge branch '2.x' into blog-alternative

Conflicts:
	css/1000.less
	functions.php
	style-ie.css
	style.css
Style corrections for comment area and comments

Fix margins and padding that were causing comments to display poorly.
Use BP-current load more activity link
Merge branch '2.x' into blog-alternative

Conflicts:
	style.css
This merge was fraught with peril. Lots of style conflicts because the
branches had diverged quite a lot.
Restore handling of category titles.
Change photo size
Merge style changes in

Add image no-border and fix the item-list-tabs misalignment problem.
Post thumbnail handling

Improve display when images are too small. Also handle cases where no
featured image has been selected.
Merge branch '2.x' into blog-alternative
Show post meta on blog view

Change stylesheet version number for cache busting. Self-defense from
non-existent classes.