Remove targetdensity

Not supported, nor needed.
Merge pull request #427 from smeranda/viewport_hotfixit

Remove targetdensity
Set base display to simply login

* Avoid reported user confusion and misdirection to Planet Red.
* Remove hover requirement to assist touch devices
Set presentation based on login status.
Just one login link, update as necessary when not logged in.
Stronger selector to override smaller screen display.
Verbiage change.
Merge pull request #428 from smeranda/login_tweak

Streamline IDM login widget
Remove unnecessary console.log
Merge pull request #431 from smeranda/analytics_hotfix

Remove unnecessary console.log
Bumped dependency version number to 3.1.12
Merge branch 'release-3.1.12' into develop
Use a proper merge reference to get the upstream master.