UI/API changes

• NEW: Probe Connectivity use case
• NEW: Khipu: export image and data
• NEW: Khipu: multi term path filter
• NEW: Khipu: country filter: by continent, search, invert selection
• NEW: Clone a measurement (from detail and listing pages)
• NEW: Measurement Form: duplicate definition
• NEW: Recheck DNS option (in measurement form and measurement detail manage tab)
• NEW: Probe Detail Results: toggle between 95th %tile (default) and median
• CHANGE: Improved Quicklook api and tagging
• CHANGE: Measurement Form: traceroute default protocol UDP -> ICMP
• CHANGE: Khipu: link to measurement detail from header
• CHANGE: Khipu: tri-toggle display option for successful/failed/all
• CHANGE: Khipu: labels on the left of toggle controls
• FIX: Khipu; ASN view display if server-resolved domain
• FIX: Khipu: some tooltips not showing in fullscreen mode
• FIX: Khipu: Ping count wrong for failed
• FIX: Khipu: Ping: implement multi target
• FIX: Khipu: DNS: show success/failures correctly on toggle
• FIX: Probe detail overview: y axis zoom scaling in traffic chart
• FIX: Measurement detail time travel selector: don't allow time selection earlier than start
• FIX: Measurement Form: prevent error when selecting end time
• FIX: Measurement detail page: prevent error and don't show map when no results yet
• TWEAK: Remove beta designations from Khipu and Quicklook
• TWEAK: Probe detail overview improve infotext for traffic chart