Add section and pages for Q&A Forums
Update JS library with dev version
Fix class name for MLS in navbar
Add HTML redirect to / directory
Changes on QAForums overview page
First version of the HTML for QAForums by tags
Add panel to show QAForums tags using repos filter
Merge branch 'qaforums-tags' into qaforums

Conflicts:
	browser/index.html
	data/metrics.json
	vizgrimoire.min.js