Improve extended stats styling

Conflicts:
	pootle/static/css/style.css
Render action links in two lines to save horizontal space

Pick notes: It was necessary to move some of the changes to other files.

Conflicts:
	pootle/apps/pootle_misc/stats.py
Followup: Put the next goal action in two lines as well
Swap colors for 'Continue translation' / 'Translation complete' actions to match the colors in the table
refactor get_translate_actions() code; make 'View all' a last action in the list

Pick notes: The changes were ported to JavaScript, because now we use it to
    render the translate actions instead of Python.

Conflicts:
	pootle/apps/pootle_misc/stats.py
Added logging

Pick notes: Did several changes, including moving some changes to other files,
    because of the divergence between Evernote and ours codebases.

Conflicts:
	pootle/apps/pootle_store/forms.py
	pootle/apps/pootle_store/models.py
Moved import for another Suggestion model to implementation place

Conflicts:
	pootle/apps/pootle_store/models.py
Hide placeholders and table headings until the table is loaded

To indicate the table is loaded, remove 'js-not-loaded' class name from the stats table

Pick notes: We already had picked later changes, so just get the missing bits.

Conflicts:
	pootle/apps/pootle_misc/browser.py
	pootle/static/css/style.css
	pootle/templates/core/table.html