Umbraco 7 compatibility

[greystate]

Fortunately, most of the helpers are compatible with Umbraco 7 out of the box, but there are a couple of things that could be cleaned up, and some that needs fixing:

• Media Helper needs to be updated to use the new cropper
• MultiPicker Helper needs to support pickers that store as JSON or CSV

[Ladefuss]

Paginationhelper has issues in at least Umbraco 7.2.4 due to the fact that the Esxlt extensions have been removed from Umbraco https://our.umbraco.org/forum/developers/xslt/46995-Umbraco-7-XSLT-Error-Due-to-Missing-Extension.
Works after installing the https://our.umbraco.org/projects/website-utilities/exslt-redux package

[greystate]

Thanks for bringing that up (even tough it's a bummer to have a dependency for something like that).

Might be able to detect it using function-available() though...