detectizr library added

Detectizr is a Modernizr extension to detect

- device
- device model
- device orientation
- screen size
- operating system
- operating system version
- operating system version full
- browser
- browser version
- browser engine
- browser plugins
Update libraries.js
added Highcharts latest
#1403 Enabled in Tern renaming in scope
Add route handler for /upgrade
Add initial upgrade page and data
Move upgrade page js into seperate file
Remove upgrade-page code froms scrip tag
Move upgrade page styling to its own file
Remove styling from style tags
Put the upgrade page behind a feature flag
Use width auto for the left most <td>'s
Add script and link tags for uprgade page externals
Use !== rather than > in condition

This is more aligned to the actual logic we're implementing
although there is no difference in flow.
Add more features
Add pathIsSSL predicate
Use pathIsSSL for protocalCheck conditions
Add education text
Add h2 to h1 rule
add backers data