Closes #246 Remove {metatools} dependency #776

Job	Run time
Get R version	1s
Links / Validate Links	3s
Check / (release)	5m 20s
Check / (devel)	43s
Check / (oldrel)	5m 14s
Documentation	0s
Render README	0s
Validation	0s
Code Coverage / Test Coverage	6m 39s
Man Pages / Roxygen	6m 21s
Lint / Lint	6m 17s
Spelling / Spellcheck	7m 52s
Code Style / Code Style	5m 52s
Check Templates / Verify	6m 25s
Code Coverage / Generate badge for coverage	5s
	50m 52s

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