add html template snippets for import/export favorites
simplify template and implement import and export (import does not update list yet)
hide page title also from favorites page (on small devices
deselects favorite star in legend when favorite gets deleted in favorite view
add provider to favorite entry
remove old code
Merge pull request #97 from ridoo/fixes/favorite-star_not-clickable

Fixes/favorite star not clickable
Merge pull request #98 from ridoo/fixes/hide-page-text-on-small-devices

Fixes/hide page text on small devices
Merge pull request #99 from ridoo/fixes/toggle-buttons-do-not-open

Fixes/toggle buttons do not open
Merge pull request #101 from ridoo/fixes/reference-values-render-own-yaxis

Fixes/reference values render own yaxis
Merge pull request #102 from ridoo/feature/configure-fixed-timeintervals

make fixed time intervals configurable via settings.js
Merge pull request #100
Merge pull request #100 from ridoo/fixes/internationalisation-on-mobile-devices

Fixes/internationalisation on mobile devices
Merge pull request #103 from ridoo/feature/import-export-favorites

Feature/import export favorites
Merge remote-tracking branch '52n/develop' into develop

Conflicts:
	src/main/webapp/templates/favorites-main.html