Bugfix: Project get_absolute_url was not working
Don't mess up drop-downs out of the breadcrumbs
Also replace any at-signs

Pick note: I don't know if the previous code was that way to avoid some
    specific problem. Decided to pick Evernote's since it is the one
    they are still using in their master.

Conflicts:
	pootle/static/js/stats.js
Don't identify `/projects/` as a language code
Also set context path when initially getting path objects
Enabled browsing table for the `All Projects` page

Fixes evernote/pootle#58.

Pick notes: Solved several conflicts due to code divergence.

Conflicts:
	docs/evernote_changelog.rst
	docs/upstream_differences.rst
	pootle/apps/pootle_app/views/index/translate.py
	pootle/apps/pootle_app/views/index/urls.py
	pootle/apps/pootle_project/models.py
	pootle/apps/pootle_project/views.py
	pootle/core/decorators.py
	pootle/templates/projects/list.html
Cleanup: Remove unnecessary text

Probably it was removed in Evernote a long time ago, but we still had it
around.
Format submission tooltip date consistently

Fixes evernote/pootle#92.