Updated translation master file
Added 3.1.0-rc1 changelog
Remove SiteTree link tracking out of HtmlEditorField
Updated translations
No <label for> on OptionsetField/CheckboxSetField holder

It produces invalid HTML since the "for" attribute doesn't
map to any HTML input field. Each individual checkbox or radio button
input element has its own <label for>
BUG: Updating old reference of sapphire to framework
Merge pull request #2324 from silverstripe-rebelalliance/sapphireChange

Updating old reference of sapphire to framework
Merge pull request #2323 from chillu/pulls/optionset-label-for

No <label for> on OptionsetField/CheckboxSetField holder