Fix bug #8416 (Preview for SVG url data types does not work) - Strip only
leading/trailing quotes from image url()s, not quotes inside the value.
(Should fix filenames containing apostrophes too)
Fix bug #8507 (Themes code throws errors during wholesale file updates) -
Don't assume FS "change" event's 'entry' arg is non-null
Removed font definitions from css since they are handled in the fonts api
Rename "Thor" themes to simple "Default (Light)" and "Dark"
Remove unused screenshot field from package.json
Use the default theme name from `defaults`
Merge pull request #8514 from adobe/dangoor/bye-thor

Rename "Thor" themes to simple "Default (Light)" and "Dark"
Change references to "custom scrollbars" to "theme scrollbars"
Move scrollbar customizations into core UI theme
Fix the selector for dark scrollbars on win and linux
Merge pull request #8516 from adobe/dangoor/8384-theme-scrollbars

Change theme scrollbar naming and set default dark scrollbars
Fix for #8488 by making the selector for the cursor as specific as the one in codemirror.
Merge pull request #8510 from adobe/pflynn/themes-fschange-fix

Fix bug #8507 (Themes code throws errors during wholesale file updates)
Merge pull request #8512 from MiguelCastillo/fonts-cssclean

Removed font definitions from css since they are handled in the fonts ap...
Fixed the border around the languages button and the scrollbar fillers
Fixes line highlight when there are no line-number
Merge pull request #8521 from adobe/tom/dark-scrollbars-languages

Fixed the border around the languages button and the scrollbar fillers
Removes line height setting.
Updated by ALF automation.
Merge pull request #8526 from adobe/dangoor/remove-lineheight

Removes line height setting