1.27

Adds:

• wordpress.com (#72), immediately superseded by implementation in PM 32.2
• 1und1 and web.de webmailers (#76)
• Supersede no longer needed WebComponents polyfills

Fixes:

• even more issue with CSP (#76)
• virustotal.com (#85)
• parts of githubs new code view... but not everything, due to technical restrictions (#90)