Changelog Digest for Thu, Jun 2

[kareila]

[dw-free]

d84c59b4c1ee: popup overlaps links on create widget Fixes overlap, left-aligns, uses more semantic markup and JavaScript.

e31d554aa4fa: Basic Boxes: 7 themes Delicate, Heart of Darkness, Owlish, Teal Deer, Histories, Profundity, With Your Rain.

074b009e0369: add Tumblr to ExternalSites Add Tumblr to the list of linkable external sites.

39703d9fb743: Remove references to module-photo because it doesn't exist Remove outdated CSS which used to apply to the userprofile module.

9af41686d18d: Styles: add option to customize side margins in all styles Use margin props in Tabula Rasa & children.

d96a516c3e6f: Styles: add option to customize side margins in all styles Don't allow side margins to be customized in Fluid Measure.