chore(whole): fix anchor problem and add ga events

Closes:
CAM-503
CAM-1077
chore(startpage): move roadmap & social media btn

-- move roadmap to seperate page
-- move social media buttons below tweets, blog posts and meetings

Closes: #CAM-1088 and #CAM-1087
chore(license): add creative commons license

also adds a missing file for #CAM-1088
Closes: #CAM-1091
fix(readme): fix license text

Related to: #CAM-1091
feat(download): redesign download-page

Closes: #CAM-1090
fix(links): add target blank
add(analytics): add new events for tracking
fix(anchor): fix maven coordinates anchor

Closes: #CAM-503
chore(downloads): change layout

-- change links of previous downloads to buttons
-- add Read getting-started guide link on main download page
-- switch license and community line in previous downloads

Closes: #CAM-1090
feat(alpha9): Add download links to alpha9
Merge branch 'develop'
feat(downloads): link latest release notes