Stabilize browser suites under parallel load #121

Job	Run time
Restore + Build Supporting Suites	53s
Restore + Build Browser Suites	1m 2s
Run Supporting Suites	1m 33s
Run Browser Suite (Reader)	10m 57s
Run Browser Suite (Studio)	3m 16s
Run Browser Suite (Shell)	4m 21s
Run Browser Suite (Editor)	19m 55s
Resolve Release Version	1s
Publish Release Build	1s
Publish GitHub Release	1s
Deploy GitHub Pages	1s
	42m 1s

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