Closes #180 derive var studyeye update@devel #429

Job	Run time
Render README	0s
Validation	0s
Documentation	0s
Links / Validate Links	7s
Check / (4.1)	3m 48s
Check / (4.2)	4m 3s
Check / (4.3)	3m 3s
Code Style / Get R version	1s
Code Coverage / Get R version	1s
Lint / Get R version	1s
Man Pages / Get R version	1s
Spelling / Get R version	1s
Check Templates / Get R version	1s
Spelling / Spellcheck	2m 59s
Code Coverage / Test Coverage	3m 28s
Lint / Lint	2m 58s
Check Templates / Verify	3m 12s
Man Pages / Roxygen	2m 31s
Code Style / Code Style	2m 28s
Code Coverage / Generate badge for coverage	4s
	28m 47s

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