[Master] Release/2019-05-29

[colbygk]

Release notes:

• May Translations update May translations update scratch-blocks#1946
  • zu
  • fa (lots)
  • pt-br
  • nb
  • rap
• Sort list variables in context menu Sort list variables in context menu scratch-blocks#1929
• Playground improvements Playground improvements scratch-render#426
• Tweak scalingVector to make dots appear to be more circular Tweak scalingVector to make dots appear to be more circular scratch-render#423 Revert "Tweak scalingVector to make dots appear to be more circular" scratch-render#466
• Implement canvas-based TextBubbleSkin Implement canvas-based TextBubbleSkin scratch-render#451
• Update the built-in SVG assets for the default project Update the built-in SVG assets for the default project scratch-gui#4846
• Pause video on tutorial window shrink Pause video on tutorial window shrink scratch-gui#4835 Revert "Pause video on tutorial window shrink" scratch-gui#4877
• add timeouts & messages to all driver.wait calls add timeouts & messages to all driver.wait calls scratch-gui#4841
• Delay loading and rendering gui Delay loading and rendering gui scratch-gui#4800 Revert "render only new toolbox xmls" scratch-gui#4874, Revert "Delay loading and rendering gui" scratch-gui#4873
• Stabilize integration tests Stabilize integration tests scratch-gui#4871
• When converting to bitmap, call inlineSvgFonts() on SVG string instead of SVG element When converting to bitmap, call inlineSvgFonts() on SVG string instead of SVG element scratch-paint#842
• Throw an error if inlineSvgFonts is called on a non-string Throw an error if inlineSvgFonts is called on a non-string scratch-svg-renderer#92
• Fix firefox instructions height overflow fix firefox instructions height overflow issue #3012
• set min-height of remix credit to max-content set min-height of remix credit to max-content #3014